Home / 2,279.59-3,146.07-1,395.98

Finding the Fourth Proportional to 2,279.59, 3,146.07 and 1,395.98

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Solution

The fourth proportional to 2,279.59, 3,146.07 and 1,395.98 is: 1,926.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.59 : 3,146.07 = 1,395.98 : x
  2. Step 2: Convert to fraction form
    2,279.59/3,146.07 = 1,395.98/x
  3. Step 3: Cross multiply
    2,279.59x = 3,146.07 × 1,395.98
  4. Step 4: Simplify right side
    2,279.59x = 4,391,828.09
  5. Step 5: Solve for x
    x = 4,391,828.09/2,279.59
  6. Step 6: Final answer
    x = 1,926.59

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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.