Home / 2,755.04-4,132.28-807.20

Finding the Fourth Proportional to 2,755.04, 4,132.28 and 807.20

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Solution

The fourth proportional to 2,755.04, 4,132.28 and 807.20 is: 1,210.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.04 : 4,132.28 = 807.20 : x
  2. Step 2: Convert to fraction form
    2,755.04/4,132.28 = 807.20/x
  3. Step 3: Cross multiply
    2,755.04x = 4,132.28 × 807.20
  4. Step 4: Simplify right side
    2,755.04x = 3,335,576.42
  5. Step 5: Solve for x
    x = 3,335,576.42/2,755.04
  6. Step 6: Final answer
    x = 1,210.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.