Home / 2,229.30-3,076.47-1,234.65

Finding the Fourth Proportional to 2,229.30, 3,076.47 and 1,234.65

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Solution

The fourth proportional to 2,229.30, 3,076.47 and 1,234.65 is: 1,703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.30 : 3,076.47 = 1,234.65 : x
  2. Step 2: Convert to fraction form
    2,229.30/3,076.47 = 1,234.65/x
  3. Step 3: Cross multiply
    2,229.30x = 3,076.47 × 1,234.65
  4. Step 4: Simplify right side
    2,229.30x = 3,798,363.69
  5. Step 5: Solve for x
    x = 3,798,363.69/2,229.30
  6. Step 6: Final answer
    x = 1,703.84

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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.