Home / 2,861.21-4,290.49-1,301.15

Finding the Fourth Proportional to 2,861.21, 4,290.49 and 1,301.15

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Solution

The fourth proportional to 2,861.21, 4,290.49 and 1,301.15 is: 1,951.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.21 : 4,290.49 = 1,301.15 : x
  2. Step 2: Convert to fraction form
    2,861.21/4,290.49 = 1,301.15/x
  3. Step 3: Cross multiply
    2,861.21x = 4,290.49 × 1,301.15
  4. Step 4: Simplify right side
    2,861.21x = 5,582,543.11
  5. Step 5: Solve for x
    x = 5,582,543.11/2,861.21
  6. Step 6: Final answer
    x = 1,951.12

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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.