Home / 4,115.79-5,679.81-2,347.95

Finding the Fourth Proportional to 4,115.79, 5,679.81 and 2,347.95

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Solution

The fourth proportional to 4,115.79, 5,679.81 and 2,347.95 is: 3,240.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.79 : 5,679.81 = 2,347.95 : x
  2. Step 2: Convert to fraction form
    4,115.79/5,679.81 = 2,347.95/x
  3. Step 3: Cross multiply
    4,115.79x = 5,679.81 × 2,347.95
  4. Step 4: Simplify right side
    4,115.79x = 13,335,909.89
  5. Step 5: Solve for x
    x = 13,335,909.89/4,115.79
  6. Step 6: Final answer
    x = 3,240.18

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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.