Home / 5,685.89-7,847.10-3,168.41

Finding the Fourth Proportional to 5,685.89, 7,847.10 and 3,168.41

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Solution

The fourth proportional to 5,685.89, 7,847.10 and 3,168.41 is: 4,372.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.89 : 7,847.10 = 3,168.41 : x
  2. Step 2: Convert to fraction form
    5,685.89/7,847.10 = 3,168.41/x
  3. Step 3: Cross multiply
    5,685.89x = 7,847.10 × 3,168.41
  4. Step 4: Simplify right side
    5,685.89x = 24,862,818.41
  5. Step 5: Solve for x
    x = 24,862,818.41/5,685.89
  6. Step 6: Final answer
    x = 4,372.72

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Half scale
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Double scale
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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.