Home / 2,094.13-3,140.67-861.88

Finding the Fourth Proportional to 2,094.13, 3,140.67 and 861.88

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Solution

The fourth proportional to 2,094.13, 3,140.67 and 861.88 is: 1,292.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,094.13 : 3,140.67 = 861.88 : x
  2. Step 2: Convert to fraction form
    2,094.13/3,140.67 = 861.88/x
  3. Step 3: Cross multiply
    2,094.13x = 3,140.67 × 861.88
  4. Step 4: Simplify right side
    2,094.13x = 2,706,880.66
  5. Step 5: Solve for x
    x = 2,706,880.66/2,094.13
  6. Step 6: Final answer
    x = 1,292.60

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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.