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Finding the Fourth Proportional to 5,909.86, 8,862.58 and 1,960.39

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Solution

The fourth proportional to 5,909.86, 8,862.58 and 1,960.39 is: 2,939.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,909.86 : 8,862.58 = 1,960.39 : x
  2. Step 2: Convert to fraction form
    5,909.86/8,862.58 = 1,960.39/x
  3. Step 3: Cross multiply
    5,909.86x = 8,862.58 × 1,960.39
  4. Step 4: Simplify right side
    5,909.86x = 17,374,113.21
  5. Step 5: Solve for x
    x = 17,374,113.21/5,909.86
  6. Step 6: Final answer
    x = 2,939.85

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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.