Home / 5,162.60-7,122.06-3,172.43

Finding the Fourth Proportional to 5,162.60, 7,122.06 and 3,172.43

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Solution

The fourth proportional to 5,162.60, 7,122.06 and 3,172.43 is: 4,376.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,162.60 : 7,122.06 = 3,172.43 : x
  2. Step 2: Convert to fraction form
    5,162.60/7,122.06 = 3,172.43/x
  3. Step 3: Cross multiply
    5,162.60x = 7,122.06 × 3,172.43
  4. Step 4: Simplify right side
    5,162.60x = 22,594,254.61
  5. Step 5: Solve for x
    x = 22,594,254.61/5,162.60
  6. Step 6: Final answer
    x = 4,376.52

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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.