Home / 5,380.55-7,425.24-3,142.07

Finding the Fourth Proportional to 5,380.55, 7,425.24 and 3,142.07

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Solution

The fourth proportional to 5,380.55, 7,425.24 and 3,142.07 is: 4,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.55 : 7,425.24 = 3,142.07 : x
  2. Step 2: Convert to fraction form
    5,380.55/7,425.24 = 3,142.07/x
  3. Step 3: Cross multiply
    5,380.55x = 7,425.24 × 3,142.07
  4. Step 4: Simplify right side
    5,380.55x = 23,330,608.41
  5. Step 5: Solve for x
    x = 23,330,608.41/5,380.55
  6. Step 6: Final answer
    x = 4,336.10

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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.