Home / 2,073.90-2,861.97-1,129.68

Finding the Fourth Proportional to 2,073.90, 2,861.97 and 1,129.68

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Solution

The fourth proportional to 2,073.90, 2,861.97 and 1,129.68 is: 1,558.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,073.90 : 2,861.97 = 1,129.68 : x
  2. Step 2: Convert to fraction form
    2,073.90/2,861.97 = 1,129.68/x
  3. Step 3: Cross multiply
    2,073.90x = 2,861.97 × 1,129.68
  4. Step 4: Simplify right side
    2,073.90x = 3,233,110.27
  5. Step 5: Solve for x
    x = 3,233,110.27/2,073.90
  6. Step 6: Final answer
    x = 1,558.95

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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.