Home / 5,847.47-8,770.25-2,148.78

Finding the Fourth Proportional to 5,847.47, 8,770.25 and 2,148.78

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Solution

The fourth proportional to 5,847.47, 8,770.25 and 2,148.78 is: 3,222.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,847.47 : 8,770.25 = 2,148.78 : x
  2. Step 2: Convert to fraction form
    5,847.47/8,770.25 = 2,148.78/x
  3. Step 3: Cross multiply
    5,847.47x = 8,770.25 × 2,148.78
  4. Step 4: Simplify right side
    5,847.47x = 18,845,337.80
  5. Step 5: Solve for x
    x = 18,845,337.80/5,847.47
  6. Step 6: Final answer
    x = 3,222.82

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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.