Home / 1,422.11-1,963.05-1,052.07

Finding the Fourth Proportional to 1,422.11, 1,963.05 and 1,052.07

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Solution

The fourth proportional to 1,422.11, 1,963.05 and 1,052.07 is: 1,452.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422.11 : 1,963.05 = 1,052.07 : x
  2. Step 2: Convert to fraction form
    1,422.11/1,963.05 = 1,052.07/x
  3. Step 3: Cross multiply
    1,422.11x = 1,963.05 × 1,052.07
  4. Step 4: Simplify right side
    1,422.11x = 2,065,260.75
  5. Step 5: Solve for x
    x = 2,065,260.75/1,422.11
  6. Step 6: Final answer
    x = 1,452.25

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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.