Home / 6,487.65-9,729.18-2,103.66

Finding the Fourth Proportional to 6,487.65, 9,729.18 and 2,103.66

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Solution

The fourth proportional to 6,487.65, 9,729.18 and 2,103.66 is: 3,154.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,487.65 : 9,729.18 = 2,103.66 : x
  2. Step 2: Convert to fraction form
    6,487.65/9,729.18 = 2,103.66/x
  3. Step 3: Cross multiply
    6,487.65x = 9,729.18 × 2,103.66
  4. Step 4: Simplify right side
    6,487.65x = 20,466,886.80
  5. Step 5: Solve for x
    x = 20,466,886.80/6,487.65
  6. Step 6: Final answer
    x = 3,154.75

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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.