Home / 2,186.19-3,279.15-887.76

Finding the Fourth Proportional to 2,186.19, 3,279.15 and 887.76

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Solution

The fourth proportional to 2,186.19, 3,279.15 and 887.76 is: 1,331.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.19 : 3,279.15 = 887.76 : x
  2. Step 2: Convert to fraction form
    2,186.19/3,279.15 = 887.76/x
  3. Step 3: Cross multiply
    2,186.19x = 3,279.15 × 887.76
  4. Step 4: Simplify right side
    2,186.19x = 2,911,098.20
  5. Step 5: Solve for x
    x = 2,911,098.20/2,186.19
  6. Step 6: Final answer
    x = 1,331.59

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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.