Home / 2,929-4,042.14-1,687

Finding the Fourth Proportional to 2,929, 4,042.14 and 1,687

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Solution

The fourth proportional to 2,929, 4,042.14 and 1,687 is: 2,328.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929 : 4,042.14 = 1,687 : x
  2. Step 2: Convert to fraction form
    2,929/4,042.14 = 1,687/x
  3. Step 3: Cross multiply
    2,929x = 4,042.14 × 1,687
  4. Step 4: Simplify right side
    2,929x = 6,819,090.18
  5. Step 5: Solve for x
    x = 6,819,090.18/2,929
  6. Step 6: Final answer
    x = 2,328.13

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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.