Home / 1,947.16-2,685.72-1,248.04

Finding the Fourth Proportional to 1,947.16, 2,685.72 and 1,248.04

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Solution

The fourth proportional to 1,947.16, 2,685.72 and 1,248.04 is: 1,721.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.16 : 2,685.72 = 1,248.04 : x
  2. Step 2: Convert to fraction form
    1,947.16/2,685.72 = 1,248.04/x
  3. Step 3: Cross multiply
    1,947.16x = 2,685.72 × 1,248.04
  4. Step 4: Simplify right side
    1,947.16x = 3,351,885.99
  5. Step 5: Solve for x
    x = 3,351,885.99/1,947.16
  6. Step 6: Final answer
    x = 1,721.42

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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.