Home / 2,175.29-3,261.09-714.05

Finding the Fourth Proportional to 2,175.29, 3,261.09 and 714.05

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Solution

The fourth proportional to 2,175.29, 3,261.09 and 714.05 is: 1,070.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.29 : 3,261.09 = 714.05 : x
  2. Step 2: Convert to fraction form
    2,175.29/3,261.09 = 714.05/x
  3. Step 3: Cross multiply
    2,175.29x = 3,261.09 × 714.05
  4. Step 4: Simplify right side
    2,175.29x = 2,328,581.31
  5. Step 5: Solve for x
    x = 2,328,581.31/2,175.29
  6. Step 6: Final answer
    x = 1,070.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.