Home / 2,184.47-3,014.68-1,288.25

Finding the Fourth Proportional to 2,184.47, 3,014.68 and 1,288.25

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Solution

The fourth proportional to 2,184.47, 3,014.68 and 1,288.25 is: 1,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.47 : 3,014.68 = 1,288.25 : x
  2. Step 2: Convert to fraction form
    2,184.47/3,014.68 = 1,288.25/x
  3. Step 3: Cross multiply
    2,184.47x = 3,014.68 × 1,288.25
  4. Step 4: Simplify right side
    2,184.47x = 3,883,661.51
  5. Step 5: Solve for x
    x = 3,883,661.51/2,184.47
  6. Step 6: Final answer
    x = 1,777.85

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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.