Home / 3,248.17-4,480.52-1,989.43

Finding the Fourth Proportional to 3,248.17, 4,480.52 and 1,989.43

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Solution

The fourth proportional to 3,248.17, 4,480.52 and 1,989.43 is: 2,744.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,248.17 : 4,480.52 = 1,989.43 : x
  2. Step 2: Convert to fraction form
    3,248.17/4,480.52 = 1,989.43/x
  3. Step 3: Cross multiply
    3,248.17x = 4,480.52 × 1,989.43
  4. Step 4: Simplify right side
    3,248.17x = 8,913,659.76
  5. Step 5: Solve for x
    x = 8,913,659.76/3,248.17
  6. Step 6: Final answer
    x = 2,744.21

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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.