Home / 3,391.52-5,087.80-1,443.20

Finding the Fourth Proportional to 3,391.52, 5,087.80 and 1,443.20

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Solution

The fourth proportional to 3,391.52, 5,087.80 and 1,443.20 is: 2,165.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.52 : 5,087.80 = 1,443.20 : x
  2. Step 2: Convert to fraction form
    3,391.52/5,087.80 = 1,443.20/x
  3. Step 3: Cross multiply
    3,391.52x = 5,087.80 × 1,443.20
  4. Step 4: Simplify right side
    3,391.52x = 7,342,712.96
  5. Step 5: Solve for x
    x = 7,342,712.96/3,391.52
  6. Step 6: Final answer
    x = 2,165.02

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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.