Home / 5,239.45-7,230.36-2,881.59

Finding the Fourth Proportional to 5,239.45, 7,230.36 and 2,881.59

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Solution

The fourth proportional to 5,239.45, 7,230.36 and 2,881.59 is: 3,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.45 : 7,230.36 = 2,881.59 : x
  2. Step 2: Convert to fraction form
    5,239.45/7,230.36 = 2,881.59/x
  3. Step 3: Cross multiply
    5,239.45x = 7,230.36 × 2,881.59
  4. Step 4: Simplify right side
    5,239.45x = 20,834,933.07
  5. Step 5: Solve for x
    x = 20,834,933.07/5,239.45
  6. Step 6: Final answer
    x = 3,976.55

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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.