Home / 4,020.32-6,029.73-1,387.82

Finding the Fourth Proportional to 4,020.32, 6,029.73 and 1,387.82

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Solution

The fourth proportional to 4,020.32, 6,029.73 and 1,387.82 is: 2,081.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,020.32 : 6,029.73 = 1,387.82 : x
  2. Step 2: Convert to fraction form
    4,020.32/6,029.73 = 1,387.82/x
  3. Step 3: Cross multiply
    4,020.32x = 6,029.73 × 1,387.82
  4. Step 4: Simplify right side
    4,020.32x = 8,368,149.74
  5. Step 5: Solve for x
    x = 8,368,149.74/4,020.32
  6. Step 6: Final answer
    x = 2,081.47

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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.