Home / 1,344.72-2,015.87-934.05

Finding the Fourth Proportional to 1,344.72, 2,015.87 and 934.05

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Solution

The fourth proportional to 1,344.72, 2,015.87 and 934.05 is: 1,400.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344.72 : 2,015.87 = 934.05 : x
  2. Step 2: Convert to fraction form
    1,344.72/2,015.87 = 934.05/x
  3. Step 3: Cross multiply
    1,344.72x = 2,015.87 × 934.05
  4. Step 4: Simplify right side
    1,344.72x = 1,882,918.70
  5. Step 5: Solve for x
    x = 1,882,918.70/1,344.72
  6. Step 6: Final answer
    x = 1,400.23

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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.