Home / 1,279.17-1,919.70-950.87

Finding the Fourth Proportional to 1,279.17, 1,919.70 and 950.87

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Solution

The fourth proportional to 1,279.17, 1,919.70 and 950.87 is: 1,427.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279.17 : 1,919.70 = 950.87 : x
  2. Step 2: Convert to fraction form
    1,279.17/1,919.70 = 950.87/x
  3. Step 3: Cross multiply
    1,279.17x = 1,919.70 × 950.87
  4. Step 4: Simplify right side
    1,279.17x = 1,825,385.14
  5. Step 5: Solve for x
    x = 1,825,385.14/1,279.17
  6. Step 6: Final answer
    x = 1,427.01

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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.