Home / 3,617.78-5,426.63-2,891.95

Finding the Fourth Proportional to 3,617.78, 5,426.63 and 2,891.95

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Solution

The fourth proportional to 3,617.78, 5,426.63 and 2,891.95 is: 4,337.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.78 : 5,426.63 = 2,891.95 : x
  2. Step 2: Convert to fraction form
    3,617.78/5,426.63 = 2,891.95/x
  3. Step 3: Cross multiply
    3,617.78x = 5,426.63 × 2,891.95
  4. Step 4: Simplify right side
    3,617.78x = 15,693,525.45
  5. Step 5: Solve for x
    x = 15,693,525.45/3,617.78
  6. Step 6: Final answer
    x = 4,337.89

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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.