Home / 2,982.38-4,115.68-1,656.29

Finding the Fourth Proportional to 2,982.38, 4,115.68 and 1,656.29

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Solution

The fourth proportional to 2,982.38, 4,115.68 and 1,656.29 is: 2,285.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.38 : 4,115.68 = 1,656.29 : x
  2. Step 2: Convert to fraction form
    2,982.38/4,115.68 = 1,656.29/x
  3. Step 3: Cross multiply
    2,982.38x = 4,115.68 × 1,656.29
  4. Step 4: Simplify right side
    2,982.38x = 6,816,765.78
  5. Step 5: Solve for x
    x = 6,816,765.78/2,982.38
  6. Step 6: Final answer
    x = 2,285.68

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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.