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Finding the Fourth Proportional to 5,630.22, 7,769.70 and 3,146.22

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Solution

The fourth proportional to 5,630.22, 7,769.70 and 3,146.22 is: 4,341.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.22 : 7,769.70 = 3,146.22 : x
  2. Step 2: Convert to fraction form
    5,630.22/7,769.70 = 3,146.22/x
  3. Step 3: Cross multiply
    5,630.22x = 7,769.70 × 3,146.22
  4. Step 4: Simplify right side
    5,630.22x = 24,445,185.53
  5. Step 5: Solve for x
    x = 24,445,185.53/5,630.22
  6. Step 6: Final answer
    x = 4,341.78

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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.