Home / 1,789.97-2,470.40-1,004.06

Finding the Fourth Proportional to 1,789.97, 2,470.40 and 1,004.06

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Solution

The fourth proportional to 1,789.97, 2,470.40 and 1,004.06 is: 1,385.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.97 : 2,470.40 = 1,004.06 : x
  2. Step 2: Convert to fraction form
    1,789.97/2,470.40 = 1,004.06/x
  3. Step 3: Cross multiply
    1,789.97x = 2,470.40 × 1,004.06
  4. Step 4: Simplify right side
    1,789.97x = 2,480,434.74
  5. Step 5: Solve for x
    x = 2,480,434.74/1,789.97
  6. Step 6: Final answer
    x = 1,385.74

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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.