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Finding the Fourth Proportional to 3,679.34, 5,488.10 and 3,347.18

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Solution

The fourth proportional to 3,679.34, 5,488.10 and 3,347.18 is: 4,992.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.34 : 5,488.10 = 3,347.18 : x
  2. Step 2: Convert to fraction form
    3,679.34/5,488.10 = 3,347.18/x
  3. Step 3: Cross multiply
    3,679.34x = 5,488.10 × 3,347.18
  4. Step 4: Simplify right side
    3,679.34x = 18,369,614.38
  5. Step 5: Solve for x
    x = 18,369,614.38/3,679.34
  6. Step 6: Final answer
    x = 4,992.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.