Home / 5,312.31-7,332.82-3,216.44

Finding the Fourth Proportional to 5,312.31, 7,332.82 and 3,216.44

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Solution

The fourth proportional to 5,312.31, 7,332.82 and 3,216.44 is: 4,439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.31 : 7,332.82 = 3,216.44 : x
  2. Step 2: Convert to fraction form
    5,312.31/7,332.82 = 3,216.44/x
  3. Step 3: Cross multiply
    5,312.31x = 7,332.82 × 3,216.44
  4. Step 4: Simplify right side
    5,312.31x = 23,585,575.56
  5. Step 5: Solve for x
    x = 23,585,575.56/5,312.31
  6. Step 6: Final answer
    x = 4,439.80

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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.