Home / 2,719.18-4,078.91-1,159.39

Finding the Fourth Proportional to 2,719.18, 4,078.91 and 1,159.39

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Solution

The fourth proportional to 2,719.18, 4,078.91 and 1,159.39 is: 1,739.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.18 : 4,078.91 = 1,159.39 : x
  2. Step 2: Convert to fraction form
    2,719.18/4,078.91 = 1,159.39/x
  3. Step 3: Cross multiply
    2,719.18x = 4,078.91 × 1,159.39
  4. Step 4: Simplify right side
    2,719.18x = 4,729,047.46
  5. Step 5: Solve for x
    x = 4,729,047.46/2,719.18
  6. Step 6: Final answer
    x = 1,739.14

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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.