Home / 6,929.61-10,391.72-2,248.90

Finding the Fourth Proportional to 6,929.61, 10,391.72 and 2,248.90

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Solution

The fourth proportional to 6,929.61, 10,391.72 and 2,248.90 is: 3,372.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,929.61 : 10,391.72 = 2,248.90 : x
  2. Step 2: Convert to fraction form
    6,929.61/10,391.72 = 2,248.90/x
  3. Step 3: Cross multiply
    6,929.61x = 10,391.72 × 2,248.90
  4. Step 4: Simplify right side
    6,929.61x = 23,369,939.11
  5. Step 5: Solve for x
    x = 23,369,939.11/6,929.61
  6. Step 6: Final answer
    x = 3,372.48

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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.