Home / 2,721.93-4,079.70-1,257.99

Finding the Fourth Proportional to 2,721.93, 4,079.70 and 1,257.99

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Solution

The fourth proportional to 2,721.93, 4,079.70 and 1,257.99 is: 1,885.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.93 : 4,079.70 = 1,257.99 : x
  2. Step 2: Convert to fraction form
    2,721.93/4,079.70 = 1,257.99/x
  3. Step 3: Cross multiply
    2,721.93x = 4,079.70 × 1,257.99
  4. Step 4: Simplify right side
    2,721.93x = 5,132,221.80
  5. Step 5: Solve for x
    x = 5,132,221.80/2,721.93
  6. Step 6: Final answer
    x = 1,885.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.