Home / 3,147.66-4,721.49-2,415.02

Finding the Fourth Proportional to 3,147.66, 4,721.49 and 2,415.02

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Solution

The fourth proportional to 3,147.66, 4,721.49 and 2,415.02 is: 3,622.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.66 : 4,721.49 = 2,415.02 : x
  2. Step 2: Convert to fraction form
    3,147.66/4,721.49 = 2,415.02/x
  3. Step 3: Cross multiply
    3,147.66x = 4,721.49 × 2,415.02
  4. Step 4: Simplify right side
    3,147.66x = 11,402,469.17
  5. Step 5: Solve for x
    x = 11,402,469.17/3,147.66
  6. Step 6: Final answer
    x = 3,622.52

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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.