Home / 5,539.12-8,308.68-1,379.13

Finding the Fourth Proportional to 5,539.12, 8,308.68 and 1,379.13

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Solution

The fourth proportional to 5,539.12, 8,308.68 and 1,379.13 is: 2,068.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,539.12 : 8,308.68 = 1,379.13 : x
  2. Step 2: Convert to fraction form
    5,539.12/8,308.68 = 1,379.13/x
  3. Step 3: Cross multiply
    5,539.12x = 8,308.68 × 1,379.13
  4. Step 4: Simplify right side
    5,539.12x = 11,458,713.52
  5. Step 5: Solve for x
    x = 11,458,713.52/5,539.12
  6. Step 6: Final answer
    x = 2,068.69

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Similar ratio
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1.5x scale

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.