Home / 5,109.13-7,663.42-1,646.11

Finding the Fourth Proportional to 5,109.13, 7,663.42 and 1,646.11

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Solution

The fourth proportional to 5,109.13, 7,663.42 and 1,646.11 is: 2,469.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.13 : 7,663.42 = 1,646.11 : x
  2. Step 2: Convert to fraction form
    5,109.13/7,663.42 = 1,646.11/x
  3. Step 3: Cross multiply
    5,109.13x = 7,663.42 × 1,646.11
  4. Step 4: Simplify right side
    5,109.13x = 12,614,832.30
  5. Step 5: Solve for x
    x = 12,614,832.30/5,109.13
  6. Step 6: Final answer
    x = 2,469.08

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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.