Home / 5,159.40-7,739.06-1,872.48

Finding the Fourth Proportional to 5,159.40, 7,739.06 and 1,872.48

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Solution

The fourth proportional to 5,159.40, 7,739.06 and 1,872.48 is: 2,808.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.40 : 7,739.06 = 1,872.48 : x
  2. Step 2: Convert to fraction form
    5,159.40/7,739.06 = 1,872.48/x
  3. Step 3: Cross multiply
    5,159.40x = 7,739.06 × 1,872.48
  4. Step 4: Simplify right side
    5,159.40x = 14,491,235.07
  5. Step 5: Solve for x
    x = 14,491,235.07/5,159.40
  6. Step 6: Final answer
    x = 2,808.71

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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.