Home / 5,125.20-7,070.40-3,239.16

Finding the Fourth Proportional to 5,125.20, 7,070.40 and 3,239.16

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Solution

The fourth proportional to 5,125.20, 7,070.40 and 3,239.16 is: 4,468.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.20 : 7,070.40 = 3,239.16 : x
  2. Step 2: Convert to fraction form
    5,125.20/7,070.40 = 3,239.16/x
  3. Step 3: Cross multiply
    5,125.20x = 7,070.40 × 3,239.16
  4. Step 4: Simplify right side
    5,125.20x = 22,902,156.86
  5. Step 5: Solve for x
    x = 22,902,156.86/5,125.20
  6. Step 6: Final answer
    x = 4,468.54

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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.