Home / 2,029.17-3,042.61-642.25

Finding the Fourth Proportional to 2,029.17, 3,042.61 and 642.25

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Solution

The fourth proportional to 2,029.17, 3,042.61 and 642.25 is: 963.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.17 : 3,042.61 = 642.25 : x
  2. Step 2: Convert to fraction form
    2,029.17/3,042.61 = 642.25/x
  3. Step 3: Cross multiply
    2,029.17x = 3,042.61 × 642.25
  4. Step 4: Simplify right side
    2,029.17x = 1,954,107.06
  5. Step 5: Solve for x
    x = 1,954,107.06/2,029.17
  6. Step 6: Final answer
    x = 963.01

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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.