Home / 2,229.10-3,076.29-1,285.13

Finding the Fourth Proportional to 2,229.10, 3,076.29 and 1,285.13

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Solution

The fourth proportional to 2,229.10, 3,076.29 and 1,285.13 is: 1,773.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.10 : 3,076.29 = 1,285.13 : x
  2. Step 2: Convert to fraction form
    2,229.10/3,076.29 = 1,285.13/x
  3. Step 3: Cross multiply
    2,229.10x = 3,076.29 × 1,285.13
  4. Step 4: Simplify right side
    2,229.10x = 3,953,440.26
  5. Step 5: Solve for x
    x = 3,953,440.26/2,229.10
  6. Step 6: Final answer
    x = 1,773.56

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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.