Home / 5,261.19-7,891.83-2,479.95

Finding the Fourth Proportional to 5,261.19, 7,891.83 and 2,479.95

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Solution

The fourth proportional to 5,261.19, 7,891.83 and 2,479.95 is: 3,719.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.19 : 7,891.83 = 2,479.95 : x
  2. Step 2: Convert to fraction form
    5,261.19/7,891.83 = 2,479.95/x
  3. Step 3: Cross multiply
    5,261.19x = 7,891.83 × 2,479.95
  4. Step 4: Simplify right side
    5,261.19x = 19,571,343.81
  5. Step 5: Solve for x
    x = 19,571,343.81/5,261.19
  6. Step 6: Final answer
    x = 3,719.95

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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.