Home / 2,175.69-3,002.08-1,291.44

Finding the Fourth Proportional to 2,175.69, 3,002.08 and 1,291.44

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Solution

The fourth proportional to 2,175.69, 3,002.08 and 1,291.44 is: 1,781.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.69 : 3,002.08 = 1,291.44 : x
  2. Step 2: Convert to fraction form
    2,175.69/3,002.08 = 1,291.44/x
  3. Step 3: Cross multiply
    2,175.69x = 3,002.08 × 1,291.44
  4. Step 4: Simplify right side
    2,175.69x = 3,877,006.20
  5. Step 5: Solve for x
    x = 3,877,006.20/2,175.69
  6. Step 6: Final answer
    x = 1,781.97

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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.