Home / 1,397.40-2,088.05-1,066.44

Finding the Fourth Proportional to 1,397.40, 2,088.05 and 1,066.44

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Solution

The fourth proportional to 1,397.40, 2,088.05 and 1,066.44 is: 1,593.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397.40 : 2,088.05 = 1,066.44 : x
  2. Step 2: Convert to fraction form
    1,397.40/2,088.05 = 1,066.44/x
  3. Step 3: Cross multiply
    1,397.40x = 2,088.05 × 1,066.44
  4. Step 4: Simplify right side
    1,397.40x = 2,226,780.04
  5. Step 5: Solve for x
    x = 2,226,780.04/1,397.40
  6. Step 6: Final answer
    x = 1,593.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.