Home / 5,152.31-7,729.91-1,691.99

Finding the Fourth Proportional to 5,152.31, 7,729.91 and 1,691.99

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Solution

The fourth proportional to 5,152.31, 7,729.91 and 1,691.99 is: 2,538.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,152.31 : 7,729.91 = 1,691.99 : x
  2. Step 2: Convert to fraction form
    5,152.31/7,729.91 = 1,691.99/x
  3. Step 3: Cross multiply
    5,152.31x = 7,729.91 × 1,691.99
  4. Step 4: Simplify right side
    5,152.31x = 13,078,930.42
  5. Step 5: Solve for x
    x = 13,078,930.42/5,152.31
  6. Step 6: Final answer
    x = 2,538.46

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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.