Home / 5,142.45-7,691.40-3,029.04

Finding the Fourth Proportional to 5,142.45, 7,691.40 and 3,029.04

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Solution

The fourth proportional to 5,142.45, 7,691.40 and 3,029.04 is: 4,530.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.45 : 7,691.40 = 3,029.04 : x
  2. Step 2: Convert to fraction form
    5,142.45/7,691.40 = 3,029.04/x
  3. Step 3: Cross multiply
    5,142.45x = 7,691.40 × 3,029.04
  4. Step 4: Simplify right side
    5,142.45x = 23,297,543.34
  5. Step 5: Solve for x
    x = 23,297,543.34/5,142.45
  6. Step 6: Final answer
    x = 4,530.44

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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.