Home / 2,719.18-4,078.11-1,256.94

Finding the Fourth Proportional to 2,719.18, 4,078.11 and 1,256.94

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Solution

The fourth proportional to 2,719.18, 4,078.11 and 1,256.94 is: 1,885.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.18 : 4,078.11 = 1,256.94 : x
  2. Step 2: Convert to fraction form
    2,719.18/4,078.11 = 1,256.94/x
  3. Step 3: Cross multiply
    2,719.18x = 4,078.11 × 1,256.94
  4. Step 4: Simplify right side
    2,719.18x = 5,125,939.58
  5. Step 5: Solve for x
    x = 5,125,939.58/2,719.18
  6. Step 6: Final answer
    x = 1,885.10

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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.