Home / 5,171.65-7,760.94-1,839.77

Finding the Fourth Proportional to 5,171.65, 7,760.94 and 1,839.77

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Solution

The fourth proportional to 5,171.65, 7,760.94 and 1,839.77 is: 2,760.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.65 : 7,760.94 = 1,839.77 : x
  2. Step 2: Convert to fraction form
    5,171.65/7,760.94 = 1,839.77/x
  3. Step 3: Cross multiply
    5,171.65x = 7,760.94 × 1,839.77
  4. Step 4: Simplify right side
    5,171.65x = 14,278,344.58
  5. Step 5: Solve for x
    x = 14,278,344.58/5,171.65
  6. Step 6: Final answer
    x = 2,760.89

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1.5x scale

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.