Home / 2,861.09-4,291.83-913.44

Finding the Fourth Proportional to 2,861.09, 4,291.83 and 913.44

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Solution

The fourth proportional to 2,861.09, 4,291.83 and 913.44 is: 1,370.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.09 : 4,291.83 = 913.44 : x
  2. Step 2: Convert to fraction form
    2,861.09/4,291.83 = 913.44/x
  3. Step 3: Cross multiply
    2,861.09x = 4,291.83 × 913.44
  4. Step 4: Simplify right side
    2,861.09x = 3,920,329.20
  5. Step 5: Solve for x
    x = 3,920,329.20/2,861.09
  6. Step 6: Final answer
    x = 1,370.22

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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.