Home / 2,186.49-3,280.14-725.34

Finding the Fourth Proportional to 2,186.49, 3,280.14 and 725.34

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Solution

The fourth proportional to 2,186.49, 3,280.14 and 725.34 is: 1,088.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.49 : 3,280.14 = 725.34 : x
  2. Step 2: Convert to fraction form
    2,186.49/3,280.14 = 725.34/x
  3. Step 3: Cross multiply
    2,186.49x = 3,280.14 × 725.34
  4. Step 4: Simplify right side
    2,186.49x = 2,379,216.75
  5. Step 5: Solve for x
    x = 2,379,216.75/2,186.49
  6. Step 6: Final answer
    x = 1,088.14

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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.