Home / 1,789.46-2,469.45-1,003.65

Finding the Fourth Proportional to 1,789.46, 2,469.45 and 1,003.65

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Solution

The fourth proportional to 1,789.46, 2,469.45 and 1,003.65 is: 1,385.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.46 : 2,469.45 = 1,003.65 : x
  2. Step 2: Convert to fraction form
    1,789.46/2,469.45 = 1,003.65/x
  3. Step 3: Cross multiply
    1,789.46x = 2,469.45 × 1,003.65
  4. Step 4: Simplify right side
    1,789.46x = 2,478,463.49
  5. Step 5: Solve for x
    x = 2,478,463.49/1,789.46
  6. Step 6: Final answer
    x = 1,385.04

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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.