Home / 1,781.28-2,665.44-1,470.24

Finding the Fourth Proportional to 1,781.28, 2,665.44 and 1,470.24

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Solution

The fourth proportional to 1,781.28, 2,665.44 and 1,470.24 is: 2,200.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.28 : 2,665.44 = 1,470.24 : x
  2. Step 2: Convert to fraction form
    1,781.28/2,665.44 = 1,470.24/x
  3. Step 3: Cross multiply
    1,781.28x = 2,665.44 × 1,470.24
  4. Step 4: Simplify right side
    1,781.28x = 3,918,836.51
  5. Step 5: Solve for x
    x = 3,918,836.51/1,781.28
  6. Step 6: Final answer
    x = 2,200.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.