Home / 5,148.60-7,105.20-3,157.97

Finding the Fourth Proportional to 5,148.60, 7,105.20 and 3,157.97

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Solution

The fourth proportional to 5,148.60, 7,105.20 and 3,157.97 is: 4,358.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.60 : 7,105.20 = 3,157.97 : x
  2. Step 2: Convert to fraction form
    5,148.60/7,105.20 = 3,157.97/x
  3. Step 3: Cross multiply
    5,148.60x = 7,105.20 × 3,157.97
  4. Step 4: Simplify right side
    5,148.60x = 22,438,018.81
  5. Step 5: Solve for x
    x = 22,438,018.81/5,148.60
  6. Step 6: Final answer
    x = 4,358.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.