Home / 5,171.10-7,761.13-2,707.65

Finding the Fourth Proportional to 5,171.10, 7,761.13 and 2,707.65

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Solution

The fourth proportional to 5,171.10, 7,761.13 and 2,707.65 is: 4,063.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.10 : 7,761.13 = 2,707.65 : x
  2. Step 2: Convert to fraction form
    5,171.10/7,761.13 = 2,707.65/x
  3. Step 3: Cross multiply
    5,171.10x = 7,761.13 × 2,707.65
  4. Step 4: Simplify right side
    5,171.10x = 21,014,423.64
  5. Step 5: Solve for x
    x = 21,014,423.64/5,171.10
  6. Step 6: Final answer
    x = 4,063.82

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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.