Home / 5,143.72-7,715.58-1,446.33

Finding the Fourth Proportional to 5,143.72, 7,715.58 and 1,446.33

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Solution

The fourth proportional to 5,143.72, 7,715.58 and 1,446.33 is: 2,169.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.72 : 7,715.58 = 1,446.33 : x
  2. Step 2: Convert to fraction form
    5,143.72/7,715.58 = 1,446.33/x
  3. Step 3: Cross multiply
    5,143.72x = 7,715.58 × 1,446.33
  4. Step 4: Simplify right side
    5,143.72x = 11,159,236.24
  5. Step 5: Solve for x
    x = 11,159,236.24/5,143.72
  6. Step 6: Final answer
    x = 2,169.49

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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.