Home / 4,172.28-6,259.42-1,398.96

Finding the Fourth Proportional to 4,172.28, 6,259.42 and 1,398.96

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Solution

The fourth proportional to 4,172.28, 6,259.42 and 1,398.96 is: 2,098.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.28 : 6,259.42 = 1,398.96 : x
  2. Step 2: Convert to fraction form
    4,172.28/6,259.42 = 1,398.96/x
  3. Step 3: Cross multiply
    4,172.28x = 6,259.42 × 1,398.96
  4. Step 4: Simplify right side
    4,172.28x = 8,756,678.20
  5. Step 5: Solve for x
    x = 8,756,678.20/4,172.28
  6. Step 6: Final answer
    x = 2,098.78

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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.