Home / 5,254.48-7,252.14-4,139.20

Finding the Fourth Proportional to 5,254.48, 7,252.14 and 4,139.20

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Solution

The fourth proportional to 5,254.48, 7,252.14 and 4,139.20 is: 5,712.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,254.48 : 7,252.14 = 4,139.20 : x
  2. Step 2: Convert to fraction form
    5,254.48/7,252.14 = 4,139.20/x
  3. Step 3: Cross multiply
    5,254.48x = 7,252.14 × 4,139.20
  4. Step 4: Simplify right side
    5,254.48x = 30,018,057.89
  5. Step 5: Solve for x
    x = 30,018,057.89/5,254.48
  6. Step 6: Final answer
    x = 5,712.85

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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.