Home / 5,159.16-7,739.91-1,872.25

Finding the Fourth Proportional to 5,159.16, 7,739.91 and 1,872.25

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Solution

The fourth proportional to 5,159.16, 7,739.91 and 1,872.25 is: 2,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.16 : 7,739.91 = 1,872.25 : x
  2. Step 2: Convert to fraction form
    5,159.16/7,739.91 = 1,872.25/x
  3. Step 3: Cross multiply
    5,159.16x = 7,739.91 × 1,872.25
  4. Step 4: Simplify right side
    5,159.16x = 14,491,027.15
  5. Step 5: Solve for x
    x = 14,491,027.15/5,159.16
  6. Step 6: Final answer
    x = 2,808.80

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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.