Home / 2,133.62-2,943.38-1,248.88

Finding the Fourth Proportional to 2,133.62, 2,943.38 and 1,248.88

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Solution

The fourth proportional to 2,133.62, 2,943.38 and 1,248.88 is: 1,722.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.62 : 2,943.38 = 1,248.88 : x
  2. Step 2: Convert to fraction form
    2,133.62/2,943.38 = 1,248.88/x
  3. Step 3: Cross multiply
    2,133.62x = 2,943.38 × 1,248.88
  4. Step 4: Simplify right side
    2,133.62x = 3,675,928.41
  5. Step 5: Solve for x
    x = 3,675,928.41/2,133.62
  6. Step 6: Final answer
    x = 1,722.86

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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.