Home / 1,423.05-1,963.88-1,073.13

Finding the Fourth Proportional to 1,423.05, 1,963.88 and 1,073.13

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Solution

The fourth proportional to 1,423.05, 1,963.88 and 1,073.13 is: 1,480.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.05 : 1,963.88 = 1,073.13 : x
  2. Step 2: Convert to fraction form
    1,423.05/1,963.88 = 1,073.13/x
  3. Step 3: Cross multiply
    1,423.05x = 1,963.88 × 1,073.13
  4. Step 4: Simplify right side
    1,423.05x = 2,107,498.54
  5. Step 5: Solve for x
    x = 2,107,498.54/1,423.05
  6. Step 6: Final answer
    x = 1,480.97

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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.