Home / 1,877.39-2,590.91-1,080.97

Finding the Fourth Proportional to 1,877.39, 2,590.91 and 1,080.97

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Solution

The fourth proportional to 1,877.39, 2,590.91 and 1,080.97 is: 1,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.39 : 2,590.91 = 1,080.97 : x
  2. Step 2: Convert to fraction form
    1,877.39/2,590.91 = 1,080.97/x
  3. Step 3: Cross multiply
    1,877.39x = 2,590.91 × 1,080.97
  4. Step 4: Simplify right side
    1,877.39x = 2,800,695.98
  5. Step 5: Solve for x
    x = 2,800,695.98/1,877.39
  6. Step 6: Final answer
    x = 1,491.80

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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.