Home / 5,115.60-7,673.40-5,042.70

Finding the Fourth Proportional to 5,115.60, 7,673.40 and 5,042.70

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Solution

The fourth proportional to 5,115.60, 7,673.40 and 5,042.70 is: 7,564.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.60 : 7,673.40 = 5,042.70 : x
  2. Step 2: Convert to fraction form
    5,115.60/7,673.40 = 5,042.70/x
  3. Step 3: Cross multiply
    5,115.60x = 7,673.40 × 5,042.70
  4. Step 4: Simplify right side
    5,115.60x = 38,694,654.18
  5. Step 5: Solve for x
    x = 38,694,654.18/5,115.60
  6. Step 6: Final answer
    x = 7,564.05

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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.