Home / 5,422.02-8,138.51-3,661.49

Finding the Fourth Proportional to 5,422.02, 8,138.51 and 3,661.49

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Solution

The fourth proportional to 5,422.02, 8,138.51 and 3,661.49 is: 5,495.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.02 : 8,138.51 = 3,661.49 : x
  2. Step 2: Convert to fraction form
    5,422.02/8,138.51 = 3,661.49/x
  3. Step 3: Cross multiply
    5,422.02x = 8,138.51 × 3,661.49
  4. Step 4: Simplify right side
    5,422.02x = 29,799,013.98
  5. Step 5: Solve for x
    x = 29,799,013.98/5,422.02
  6. Step 6: Final answer
    x = 5,495.92

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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.