Home / 3,719.31-5,130.88-2,226.95

Finding the Fourth Proportional to 3,719.31, 5,130.88 and 2,226.95

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Solution

The fourth proportional to 3,719.31, 5,130.88 and 2,226.95 is: 3,072.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.31 : 5,130.88 = 2,226.95 : x
  2. Step 2: Convert to fraction form
    3,719.31/5,130.88 = 2,226.95/x
  3. Step 3: Cross multiply
    3,719.31x = 5,130.88 × 2,226.95
  4. Step 4: Simplify right side
    3,719.31x = 11,426,187.56
  5. Step 5: Solve for x
    x = 11,426,187.56/3,719.31
  6. Step 6: Final answer
    x = 3,072.13

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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.