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Finding the Fourth Proportional to 1,963.95, 2,711.49 and 1,366.22

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Solution

The fourth proportional to 1,963.95, 2,711.49 and 1,366.22 is: 1,886.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963.95 : 2,711.49 = 1,366.22 : x
  2. Step 2: Convert to fraction form
    1,963.95/2,711.49 = 1,366.22/x
  3. Step 3: Cross multiply
    1,963.95x = 2,711.49 × 1,366.22
  4. Step 4: Simplify right side
    1,963.95x = 3,704,478.31
  5. Step 5: Solve for x
    x = 3,704,478.31/1,963.95
  6. Step 6: Final answer
    x = 1,886.24

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1.5x scale

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.