Home / 5,141.76-7,712.64-1,246.16

Finding the Fourth Proportional to 5,141.76, 7,712.64 and 1,246.16

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Solution

The fourth proportional to 5,141.76, 7,712.64 and 1,246.16 is: 1,869.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.76 : 7,712.64 = 1,246.16 : x
  2. Step 2: Convert to fraction form
    5,141.76/7,712.64 = 1,246.16/x
  3. Step 3: Cross multiply
    5,141.76x = 7,712.64 × 1,246.16
  4. Step 4: Simplify right side
    5,141.76x = 9,611,183.46
  5. Step 5: Solve for x
    x = 9,611,183.46/5,141.76
  6. Step 6: Final answer
    x = 1,869.24

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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.