Home / 5,132.40-7,080.20-3,243.08

Finding the Fourth Proportional to 5,132.40, 7,080.20 and 3,243.08

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Solution

The fourth proportional to 5,132.40, 7,080.20 and 3,243.08 is: 4,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.40 : 7,080.20 = 3,243.08 : x
  2. Step 2: Convert to fraction form
    5,132.40/7,080.20 = 3,243.08/x
  3. Step 3: Cross multiply
    5,132.40x = 7,080.20 × 3,243.08
  4. Step 4: Simplify right side
    5,132.40x = 22,961,603.40
  5. Step 5: Solve for x
    x = 22,961,603.40/5,132.40
  6. Step 6: Final answer
    x = 4,473.85

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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.