Home / 2,279.70-3,146.76-1,418.02

Finding the Fourth Proportional to 2,279.70, 3,146.76 and 1,418.02

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Solution

The fourth proportional to 2,279.70, 3,146.76 and 1,418.02 is: 1,957.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.70 : 3,146.76 = 1,418.02 : x
  2. Step 2: Convert to fraction form
    2,279.70/3,146.76 = 1,418.02/x
  3. Step 3: Cross multiply
    2,279.70x = 3,146.76 × 1,418.02
  4. Step 4: Simplify right side
    2,279.70x = 4,462,168.62
  5. Step 5: Solve for x
    x = 4,462,168.62/2,279.70
  6. Step 6: Final answer
    x = 1,957.35

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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.