Home / 5,193.60-7,167.78-2,956.20

Finding the Fourth Proportional to 5,193.60, 7,167.78 and 2,956.20

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Solution

The fourth proportional to 5,193.60, 7,167.78 and 2,956.20 is: 4,079.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,193.60 : 7,167.78 = 2,956.20 : x
  2. Step 2: Convert to fraction form
    5,193.60/7,167.78 = 2,956.20/x
  3. Step 3: Cross multiply
    5,193.60x = 7,167.78 × 2,956.20
  4. Step 4: Simplify right side
    5,193.60x = 21,189,391.24
  5. Step 5: Solve for x
    x = 21,189,391.24/5,193.60
  6. Step 6: Final answer
    x = 4,079.90

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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.