Home / 2,721.74-4,079.77-1,259.69

Finding the Fourth Proportional to 2,721.74, 4,079.77 and 1,259.69

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Solution

The fourth proportional to 2,721.74, 4,079.77 and 1,259.69 is: 1,888.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.74 : 4,079.77 = 1,259.69 : x
  2. Step 2: Convert to fraction form
    2,721.74/4,079.77 = 1,259.69/x
  3. Step 3: Cross multiply
    2,721.74x = 4,079.77 × 1,259.69
  4. Step 4: Simplify right side
    2,721.74x = 5,139,221.92
  5. Step 5: Solve for x
    x = 5,139,221.92/2,721.74
  6. Step 6: Final answer
    x = 1,888.22

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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.