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Finding the Fourth Proportional to 5,885.28, 8,827.86 and 1,781.28

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Solution

The fourth proportional to 5,885.28, 8,827.86 and 1,781.28 is: 2,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,885.28 : 8,827.86 = 1,781.28 : x
  2. Step 2: Convert to fraction form
    5,885.28/8,827.86 = 1,781.28/x
  3. Step 3: Cross multiply
    5,885.28x = 8,827.86 × 1,781.28
  4. Step 4: Simplify right side
    5,885.28x = 15,724,890.46
  5. Step 5: Solve for x
    x = 15,724,890.46/5,885.28
  6. Step 6: Final answer
    x = 2,671.90

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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.