Home / 2,719.19-4,072.70-1,253.90

Finding the Fourth Proportional to 2,719.19, 4,072.70 and 1,253.90

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Solution

The fourth proportional to 2,719.19, 4,072.70 and 1,253.90 is: 1,878.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.19 : 4,072.70 = 1,253.90 : x
  2. Step 2: Convert to fraction form
    2,719.19/4,072.70 = 1,253.90/x
  3. Step 3: Cross multiply
    2,719.19x = 4,072.70 × 1,253.90
  4. Step 4: Simplify right side
    2,719.19x = 5,106,741.30
  5. Step 5: Solve for x
    x = 5,106,741.30/2,719.19
  6. Step 6: Final answer
    x = 1,878.04

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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.