Home / 2,186.76-3,280.14-726.06

Finding the Fourth Proportional to 2,186.76, 3,280.14 and 726.06

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Solution

The fourth proportional to 2,186.76, 3,280.14 and 726.06 is: 1,089.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.76 : 3,280.14 = 726.06 : x
  2. Step 2: Convert to fraction form
    2,186.76/3,280.14 = 726.06/x
  3. Step 3: Cross multiply
    2,186.76x = 3,280.14 × 726.06
  4. Step 4: Simplify right side
    2,186.76x = 2,381,578.45
  5. Step 5: Solve for x
    x = 2,381,578.45/2,186.76
  6. Step 6: Final answer
    x = 1,089.09

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1.5x scale

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.