Home / 3,154.28-4,730.38-1,672.63

Finding the Fourth Proportional to 3,154.28, 4,730.38 and 1,672.63

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Solution

The fourth proportional to 3,154.28, 4,730.38 and 1,672.63 is: 2,508.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.28 : 4,730.38 = 1,672.63 : x
  2. Step 2: Convert to fraction form
    3,154.28/4,730.38 = 1,672.63/x
  3. Step 3: Cross multiply
    3,154.28x = 4,730.38 × 1,672.63
  4. Step 4: Simplify right side
    3,154.28x = 7,912,159.49
  5. Step 5: Solve for x
    x = 7,912,159.49/3,154.28
  6. Step 6: Final answer
    x = 2,508.39

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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.