Home / 5,239.62-7,230.53-2,881.77

Finding the Fourth Proportional to 5,239.62, 7,230.53 and 2,881.77

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Solution

The fourth proportional to 5,239.62, 7,230.53 and 2,881.77 is: 3,976.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.62 : 7,230.53 = 2,881.77 : x
  2. Step 2: Convert to fraction form
    5,239.62/7,230.53 = 2,881.77/x
  3. Step 3: Cross multiply
    5,239.62x = 7,230.53 × 2,881.77
  4. Step 4: Simplify right side
    5,239.62x = 20,836,704.53
  5. Step 5: Solve for x
    x = 20,836,704.53/5,239.62
  6. Step 6: Final answer
    x = 3,976.76

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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.