Home / 2,765.38-3,815.97-1,630.87

Finding the Fourth Proportional to 2,765.38, 3,815.97 and 1,630.87

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Solution

The fourth proportional to 2,765.38, 3,815.97 and 1,630.87 is: 2,250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.38 : 3,815.97 = 1,630.87 : x
  2. Step 2: Convert to fraction form
    2,765.38/3,815.97 = 1,630.87/x
  3. Step 3: Cross multiply
    2,765.38x = 3,815.97 × 1,630.87
  4. Step 4: Simplify right side
    2,765.38x = 6,223,350.99
  5. Step 5: Solve for x
    x = 6,223,350.99/2,765.38
  6. Step 6: Final answer
    x = 2,250.45

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Half scale
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Double 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.