Home / 3,132.89-4,721.35-2,820.92

Finding the Fourth Proportional to 3,132.89, 4,721.35 and 2,820.92

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Solution

The fourth proportional to 3,132.89, 4,721.35 and 2,820.92 is: 4,251.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.89 : 4,721.35 = 2,820.92 : x
  2. Step 2: Convert to fraction form
    3,132.89/4,721.35 = 2,820.92/x
  3. Step 3: Cross multiply
    3,132.89x = 4,721.35 × 2,820.92
  4. Step 4: Simplify right side
    3,132.89x = 13,318,519.98
  5. Step 5: Solve for x
    x = 13,318,519.98/3,132.89
  6. Step 6: Final answer
    x = 4,251.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.