Home / 5,170.42-7,758.87-2,707.21

Finding the Fourth Proportional to 5,170.42, 7,758.87 and 2,707.21

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Solution

The fourth proportional to 5,170.42, 7,758.87 and 2,707.21 is: 4,062.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.42 : 7,758.87 = 2,707.21 : x
  2. Step 2: Convert to fraction form
    5,170.42/7,758.87 = 2,707.21/x
  3. Step 3: Cross multiply
    5,170.42x = 7,758.87 × 2,707.21
  4. Step 4: Simplify right side
    5,170.42x = 21,004,890.45
  5. Step 5: Solve for x
    x = 21,004,890.45/5,170.42
  6. Step 6: Final answer
    x = 4,062.51

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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.