Home / 1,480.19-2,042.73-890.91

Finding the Fourth Proportional to 1,480.19, 2,042.73 and 890.91

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Solution

The fourth proportional to 1,480.19, 2,042.73 and 890.91 is: 1,229.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.19 : 2,042.73 = 890.91 : x
  2. Step 2: Convert to fraction form
    1,480.19/2,042.73 = 890.91/x
  3. Step 3: Cross multiply
    1,480.19x = 2,042.73 × 890.91
  4. Step 4: Simplify right side
    1,480.19x = 1,819,888.58
  5. Step 5: Solve for x
    x = 1,819,888.58/1,480.19
  6. Step 6: Final answer
    x = 1,229.50

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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.