Home / 2,029.23-3,044.43-642.75

Finding the Fourth Proportional to 2,029.23, 3,044.43 and 642.75

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Solution

The fourth proportional to 2,029.23, 3,044.43 and 642.75 is: 964.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.23 : 3,044.43 = 642.75 : x
  2. Step 2: Convert to fraction form
    2,029.23/3,044.43 = 642.75/x
  3. Step 3: Cross multiply
    2,029.23x = 3,044.43 × 642.75
  4. Step 4: Simplify right side
    2,029.23x = 1,956,807.38
  5. Step 5: Solve for x
    x = 1,956,807.38/2,029.23
  6. Step 6: Final answer
    x = 964.31

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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.