Home / 5,159.24-7,120.18-3,170.49

Finding the Fourth Proportional to 5,159.24, 7,120.18 and 3,170.49

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Solution

The fourth proportional to 5,159.24, 7,120.18 and 3,170.49 is: 4,375.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.24 : 7,120.18 = 3,170.49 : x
  2. Step 2: Convert to fraction form
    5,159.24/7,120.18 = 3,170.49/x
  3. Step 3: Cross multiply
    5,159.24x = 7,120.18 × 3,170.49
  4. Step 4: Simplify right side
    5,159.24x = 22,574,408.03
  5. Step 5: Solve for x
    x = 22,574,408.03/5,159.24
  6. Step 6: Final answer
    x = 4,375.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.