Home / 5,142.22-7,096.40-3,153.87

Finding the Fourth Proportional to 5,142.22, 7,096.40 and 3,153.87

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Solution

The fourth proportional to 5,142.22, 7,096.40 and 3,153.87 is: 4,352.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.22 : 7,096.40 = 3,153.87 : x
  2. Step 2: Convert to fraction form
    5,142.22/7,096.40 = 3,153.87/x
  3. Step 3: Cross multiply
    5,142.22x = 7,096.40 × 3,153.87
  4. Step 4: Simplify right side
    5,142.22x = 22,381,107.30
  5. Step 5: Solve for x
    x = 22,381,107.30/5,142.22
  6. Step 6: Final answer
    x = 4,352.42

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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.