Home / 2,929.13-4,042.23-1,687.13

Finding the Fourth Proportional to 2,929.13, 4,042.23 and 1,687.13

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Solution

The fourth proportional to 2,929.13, 4,042.23 and 1,687.13 is: 2,328.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.13 : 4,042.23 = 1,687.13 : x
  2. Step 2: Convert to fraction form
    2,929.13/4,042.23 = 1,687.13/x
  3. Step 3: Cross multiply
    2,929.13x = 4,042.23 × 1,687.13
  4. Step 4: Simplify right side
    2,929.13x = 6,819,747.29
  5. Step 5: Solve for x
    x = 6,819,747.29/2,929.13
  6. Step 6: Final answer
    x = 2,328.25

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1.5x scale

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.