Home / 2,014.91-2,780.64-1,130.75

Finding the Fourth Proportional to 2,014.91, 2,780.64 and 1,130.75

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Solution

The fourth proportional to 2,014.91, 2,780.64 and 1,130.75 is: 1,560.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,014.91 : 2,780.64 = 1,130.75 : x
  2. Step 2: Convert to fraction form
    2,014.91/2,780.64 = 1,130.75/x
  3. Step 3: Cross multiply
    2,014.91x = 2,780.64 × 1,130.75
  4. Step 4: Simplify right side
    2,014.91x = 3,144,208.68
  5. Step 5: Solve for x
    x = 3,144,208.68/2,014.91
  6. Step 6: Final answer
    x = 1,560.47

Related Problems

Find fourth proportional to 1,007.46, 1,390.32 and 565.38
Half scale
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Double scale
Find fourth proportional to 2,015.91, 2,782.02 and 1,131.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.