Home / 5,491.38-7,576.23-3,131.82

Finding the Fourth Proportional to 5,491.38, 7,576.23 and 3,131.82

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Solution

The fourth proportional to 5,491.38, 7,576.23 and 3,131.82 is: 4,320.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.38 : 7,576.23 = 3,131.82 : x
  2. Step 2: Convert to fraction form
    5,491.38/7,576.23 = 3,131.82/x
  3. Step 3: Cross multiply
    5,491.38x = 7,576.23 × 3,131.82
  4. Step 4: Simplify right side
    5,491.38x = 23,727,388.64
  5. Step 5: Solve for x
    x = 23,727,388.64/5,491.38
  6. Step 6: Final answer
    x = 4,320.84

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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.