Home / 5,254.47-7,249.50-3,129.84

Finding the Fourth Proportional to 5,254.47, 7,249.50 and 3,129.84

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Solution

The fourth proportional to 5,254.47, 7,249.50 and 3,129.84 is: 4,318.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,254.47 : 7,249.50 = 3,129.84 : x
  2. Step 2: Convert to fraction form
    5,254.47/7,249.50 = 3,129.84/x
  3. Step 3: Cross multiply
    5,254.47x = 7,249.50 × 3,129.84
  4. Step 4: Simplify right side
    5,254.47x = 22,689,775.08
  5. Step 5: Solve for x
    x = 22,689,775.08/5,254.47
  6. Step 6: Final answer
    x = 4,318.19

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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.