Home / 7,491.40-11,237.10-3,107.68

Finding the Fourth Proportional to 7,491.40, 11,237.10 and 3,107.68

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Solution

The fourth proportional to 7,491.40, 11,237.10 and 3,107.68 is: 4,661.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.40 : 11,237.10 = 3,107.68 : x
  2. Step 2: Convert to fraction form
    7,491.40/11,237.10 = 3,107.68/x
  3. Step 3: Cross multiply
    7,491.40x = 11,237.10 × 3,107.68
  4. Step 4: Simplify right side
    7,491.40x = 34,921,310.93
  5. Step 5: Solve for x
    x = 34,921,310.93/7,491.40
  6. Step 6: Final answer
    x = 4,661.52

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.