Home / 5,269.90-7,909.29-2,636.62

Finding the Fourth Proportional to 5,269.90, 7,909.29 and 2,636.62

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Solution

The fourth proportional to 5,269.90, 7,909.29 and 2,636.62 is: 3,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,269.90 : 7,909.29 = 2,636.62 : x
  2. Step 2: Convert to fraction form
    5,269.90/7,909.29 = 2,636.62/x
  3. Step 3: Cross multiply
    5,269.90x = 7,909.29 × 2,636.62
  4. Step 4: Simplify right side
    5,269.90x = 20,853,779.02
  5. Step 5: Solve for x
    x = 20,853,779.02/5,269.90
  6. Step 6: Final answer
    x = 3,957.15

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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.