Home / 2,861.13-3,948.87-2,077.46

Finding the Fourth Proportional to 2,861.13, 3,948.87 and 2,077.46

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Solution

The fourth proportional to 2,861.13, 3,948.87 and 2,077.46 is: 2,867.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.13 : 3,948.87 = 2,077.46 : x
  2. Step 2: Convert to fraction form
    2,861.13/3,948.87 = 2,077.46/x
  3. Step 3: Cross multiply
    2,861.13x = 3,948.87 × 2,077.46
  4. Step 4: Simplify right side
    2,861.13x = 8,203,589.34
  5. Step 5: Solve for x
    x = 8,203,589.34/2,861.13
  6. Step 6: Final answer
    x = 2,867.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.