Home / 2,094.20-3,141.08-861.76

Finding the Fourth Proportional to 2,094.20, 3,141.08 and 861.76

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Solution

The fourth proportional to 2,094.20, 3,141.08 and 861.76 is: 1,292.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,094.20 : 3,141.08 = 861.76 : x
  2. Step 2: Convert to fraction form
    2,094.20/3,141.08 = 861.76/x
  3. Step 3: Cross multiply
    2,094.20x = 3,141.08 × 861.76
  4. Step 4: Simplify right side
    2,094.20x = 2,706,857.10
  5. Step 5: Solve for x
    x = 2,706,857.10/2,094.20
  6. Step 6: Final answer
    x = 1,292.55

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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.