Home / 1,634.13-2,451.40-538.20

Finding the Fourth Proportional to 1,634.13, 2,451.40 and 538.20

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Solution

The fourth proportional to 1,634.13, 2,451.40 and 538.20 is: 807.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.13 : 2,451.40 = 538.20 : x
  2. Step 2: Convert to fraction form
    1,634.13/2,451.40 = 538.20/x
  3. Step 3: Cross multiply
    1,634.13x = 2,451.40 × 538.20
  4. Step 4: Simplify right side
    1,634.13x = 1,319,343.48
  5. Step 5: Solve for x
    x = 1,319,343.48/1,634.13
  6. Step 6: Final answer
    x = 807.37

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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.