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Finding the Fourth Proportional to 5,869.76, 8,100.16 and 3,217.19

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Solution

The fourth proportional to 5,869.76, 8,100.16 and 3,217.19 is: 4,439.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,869.76 : 8,100.16 = 3,217.19 : x
  2. Step 2: Convert to fraction form
    5,869.76/8,100.16 = 3,217.19/x
  3. Step 3: Cross multiply
    5,869.76x = 8,100.16 × 3,217.19
  4. Step 4: Simplify right side
    5,869.76x = 26,059,705.21
  5. Step 5: Solve for x
    x = 26,059,705.21/5,869.76
  6. Step 6: Final answer
    x = 4,439.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.