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Finding the Fourth Proportional to 5,244.03, 7,866.05 and 1,781.28

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Solution

The fourth proportional to 5,244.03, 7,866.05 and 1,781.28 is: 2,671.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,244.03 : 7,866.05 = 1,781.28 : x
  2. Step 2: Convert to fraction form
    5,244.03/7,866.05 = 1,781.28/x
  3. Step 3: Cross multiply
    5,244.03x = 7,866.05 × 1,781.28
  4. Step 4: Simplify right side
    5,244.03x = 14,011,628.64
  5. Step 5: Solve for x
    x = 14,011,628.64/5,244.03
  6. Step 6: Final answer
    x = 2,671.92

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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.