Home / 4,238.32-6,359.76-1,641.28

Finding the Fourth Proportional to 4,238.32, 6,359.76 and 1,641.28

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Solution

The fourth proportional to 4,238.32, 6,359.76 and 1,641.28 is: 2,462.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,238.32 : 6,359.76 = 1,641.28 : x
  2. Step 2: Convert to fraction form
    4,238.32/6,359.76 = 1,641.28/x
  3. Step 3: Cross multiply
    4,238.32x = 6,359.76 × 1,641.28
  4. Step 4: Simplify right side
    4,238.32x = 10,438,146.89
  5. Step 5: Solve for x
    x = 10,438,146.89/4,238.32
  6. Step 6: Final answer
    x = 2,462.80

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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.