Home / 2,010.38-2,774.39-1,170.90

Finding the Fourth Proportional to 2,010.38, 2,774.39 and 1,170.90

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Solution

The fourth proportional to 2,010.38, 2,774.39 and 1,170.90 is: 1,615.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,010.38 : 2,774.39 = 1,170.90 : x
  2. Step 2: Convert to fraction form
    2,010.38/2,774.39 = 1,170.90/x
  3. Step 3: Cross multiply
    2,010.38x = 2,774.39 × 1,170.90
  4. Step 4: Simplify right side
    2,010.38x = 3,248,527.40
  5. Step 5: Solve for x
    x = 3,248,527.40/2,010.38
  6. Step 6: Final answer
    x = 1,615.88

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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.