Home / 2,216.84-3,053.04-1,979.78

Finding the Fourth Proportional to 2,216.84, 3,053.04 and 1,979.78

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Solution

The fourth proportional to 2,216.84, 3,053.04 and 1,979.78 is: 2,726.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.84 : 3,053.04 = 1,979.78 : x
  2. Step 2: Convert to fraction form
    2,216.84/3,053.04 = 1,979.78/x
  3. Step 3: Cross multiply
    2,216.84x = 3,053.04 × 1,979.78
  4. Step 4: Simplify right side
    2,216.84x = 6,044,347.53
  5. Step 5: Solve for x
    x = 6,044,347.53/2,216.84
  6. Step 6: Final answer
    x = 2,726.56

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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.