Home / 4,249.65-6,374.31-1,287.98

Finding the Fourth Proportional to 4,249.65, 6,374.31 and 1,287.98

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Solution

The fourth proportional to 4,249.65, 6,374.31 and 1,287.98 is: 1,931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,249.65 : 6,374.31 = 1,287.98 : x
  2. Step 2: Convert to fraction form
    4,249.65/6,374.31 = 1,287.98/x
  3. Step 3: Cross multiply
    4,249.65x = 6,374.31 × 1,287.98
  4. Step 4: Simplify right side
    4,249.65x = 8,209,954.88
  5. Step 5: Solve for x
    x = 8,209,954.88/4,249.65
  6. Step 6: Final answer
    x = 1,931.91

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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.