Home / 3,445.12-5,167.68-2,931.04

Finding the Fourth Proportional to 3,445.12, 5,167.68 and 2,931.04

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Solution

The fourth proportional to 3,445.12, 5,167.68 and 2,931.04 is: 4,396.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.12 : 5,167.68 = 2,931.04 : x
  2. Step 2: Convert to fraction form
    3,445.12/5,167.68 = 2,931.04/x
  3. Step 3: Cross multiply
    3,445.12x = 5,167.68 × 2,931.04
  4. Step 4: Simplify right side
    3,445.12x = 15,146,676.79
  5. Step 5: Solve for x
    x = 15,146,676.79/3,445.12
  6. Step 6: Final answer
    x = 4,396.56

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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.