Home / 1,630.13-2,445.40-534.20

Finding the Fourth Proportional to 1,630.13, 2,445.40 and 534.20

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Solution

The fourth proportional to 1,630.13, 2,445.40 and 534.20 is: 801.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.13 : 2,445.40 = 534.20 : x
  2. Step 2: Convert to fraction form
    1,630.13/2,445.40 = 534.20/x
  3. Step 3: Cross multiply
    1,630.13x = 2,445.40 × 534.20
  4. Step 4: Simplify right side
    1,630.13x = 1,306,332.68
  5. Step 5: Solve for x
    x = 1,306,332.68/1,630.13
  6. Step 6: Final answer
    x = 801.37

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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.