Home / 5,310.61-7,321.76-3,418.81

Finding the Fourth Proportional to 5,310.61, 7,321.76 and 3,418.81

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Solution

The fourth proportional to 5,310.61, 7,321.76 and 3,418.81 is: 4,713.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.61 : 7,321.76 = 3,418.81 : x
  2. Step 2: Convert to fraction form
    5,310.61/7,321.76 = 3,418.81/x
  3. Step 3: Cross multiply
    5,310.61x = 7,321.76 × 3,418.81
  4. Step 4: Simplify right side
    5,310.61x = 25,031,689.21
  5. Step 5: Solve for x
    x = 25,031,689.21/5,310.61
  6. Step 6: Final answer
    x = 4,713.52

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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.