Home / 3,191.12-4,761.60-3,172.96

Finding the Fourth Proportional to 3,191.12, 4,761.60 and 3,172.96

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Solution

The fourth proportional to 3,191.12, 4,761.60 and 3,172.96 is: 4,734.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.12 : 4,761.60 = 3,172.96 : x
  2. Step 2: Convert to fraction form
    3,191.12/4,761.60 = 3,172.96/x
  3. Step 3: Cross multiply
    3,191.12x = 4,761.60 × 3,172.96
  4. Step 4: Simplify right side
    3,191.12x = 15,108,366.34
  5. Step 5: Solve for x
    x = 15,108,366.34/3,191.12
  6. Step 6: Final answer
    x = 4,734.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.