Home / 5,138.16-7,088.28-3,248.88

Finding the Fourth Proportional to 5,138.16, 7,088.28 and 3,248.88

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Solution

The fourth proportional to 5,138.16, 7,088.28 and 3,248.88 is: 4,481.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.16 : 7,088.28 = 3,248.88 : x
  2. Step 2: Convert to fraction form
    5,138.16/7,088.28 = 3,248.88/x
  3. Step 3: Cross multiply
    5,138.16x = 7,088.28 × 3,248.88
  4. Step 4: Simplify right side
    5,138.16x = 23,028,971.13
  5. Step 5: Solve for x
    x = 23,028,971.13/5,138.16
  6. Step 6: Final answer
    x = 4,481.95

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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.