Home / 3,117.60-4,672.11-1,819.98

Finding the Fourth Proportional to 3,117.60, 4,672.11 and 1,819.98

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Solution

The fourth proportional to 3,117.60, 4,672.11 and 1,819.98 is: 2,727.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.60 : 4,672.11 = 1,819.98 : x
  2. Step 2: Convert to fraction form
    3,117.60/4,672.11 = 1,819.98/x
  3. Step 3: Cross multiply
    3,117.60x = 4,672.11 × 1,819.98
  4. Step 4: Simplify right side
    3,117.60x = 8,503,146.76
  5. Step 5: Solve for x
    x = 8,503,146.76/3,117.60
  6. Step 6: Final answer
    x = 2,727.47

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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.