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Finding the Fourth Proportional to 5,869.86, 8,100.37 and 3,512.55

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Solution

The fourth proportional to 5,869.86, 8,100.37 and 3,512.55 is: 4,847.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,869.86 : 8,100.37 = 3,512.55 : x
  2. Step 2: Convert to fraction form
    5,869.86/8,100.37 = 3,512.55/x
  3. Step 3: Cross multiply
    5,869.86x = 8,100.37 × 3,512.55
  4. Step 4: Simplify right side
    5,869.86x = 28,452,954.64
  5. Step 5: Solve for x
    x = 28,452,954.64/5,869.86
  6. Step 6: Final answer
    x = 4,847.30

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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.