Home / 3,098.38-4,275.90-1,772.09

Finding the Fourth Proportional to 3,098.38, 4,275.90 and 1,772.09

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Solution

The fourth proportional to 3,098.38, 4,275.90 and 1,772.09 is: 2,445.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.38 : 4,275.90 = 1,772.09 : x
  2. Step 2: Convert to fraction form
    3,098.38/4,275.90 = 1,772.09/x
  3. Step 3: Cross multiply
    3,098.38x = 4,275.90 × 1,772.09
  4. Step 4: Simplify right side
    3,098.38x = 7,577,279.63
  5. Step 5: Solve for x
    x = 7,577,279.63/3,098.38
  6. Step 6: Final answer
    x = 2,445.56

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Half scale
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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.