Home / 7,475.38-11,209.83-2,543.70

Finding the Fourth Proportional to 7,475.38, 11,209.83 and 2,543.70

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Solution

The fourth proportional to 7,475.38, 11,209.83 and 2,543.70 is: 3,814.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.38 : 11,209.83 = 2,543.70 : x
  2. Step 2: Convert to fraction form
    7,475.38/11,209.83 = 2,543.70/x
  3. Step 3: Cross multiply
    7,475.38x = 11,209.83 × 2,543.70
  4. Step 4: Simplify right side
    7,475.38x = 28,514,444.57
  5. Step 5: Solve for x
    x = 28,514,444.57/7,475.38
  6. Step 6: Final answer
    x = 3,814.45

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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.