Home / 2,982.20-4,115.52-1,655.91

Finding the Fourth Proportional to 2,982.20, 4,115.52 and 1,655.91

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Solution

The fourth proportional to 2,982.20, 4,115.52 and 1,655.91 is: 2,285.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.20 : 4,115.52 = 1,655.91 : x
  2. Step 2: Convert to fraction form
    2,982.20/4,115.52 = 1,655.91/x
  3. Step 3: Cross multiply
    2,982.20x = 4,115.52 × 1,655.91
  4. Step 4: Simplify right side
    2,982.20x = 6,814,930.72
  5. Step 5: Solve for x
    x = 6,814,930.72/2,982.20
  6. Step 6: Final answer
    x = 2,285.21

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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.