Home / 2,015.08-2,780.93-1,130.96

Finding the Fourth Proportional to 2,015.08, 2,780.93 and 1,130.96

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Solution

The fourth proportional to 2,015.08, 2,780.93 and 1,130.96 is: 1,560.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.08 : 2,780.93 = 1,130.96 : x
  2. Step 2: Convert to fraction form
    2,015.08/2,780.93 = 1,130.96/x
  3. Step 3: Cross multiply
    2,015.08x = 2,780.93 × 1,130.96
  4. Step 4: Simplify right side
    2,015.08x = 3,145,130.37
  5. Step 5: Solve for x
    x = 3,145,130.37/2,015.08
  6. Step 6: Final answer
    x = 1,560.80

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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.