Home / 5,239.50-7,230.54-2,881.62

Finding the Fourth Proportional to 5,239.50, 7,230.54 and 2,881.62

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Solution

The fourth proportional to 5,239.50, 7,230.54 and 2,881.62 is: 3,976.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.50 : 7,230.54 = 2,881.62 : x
  2. Step 2: Convert to fraction form
    5,239.50/7,230.54 = 2,881.62/x
  3. Step 3: Cross multiply
    5,239.50x = 7,230.54 × 2,881.62
  4. Step 4: Simplify right side
    5,239.50x = 20,835,668.67
  5. Step 5: Solve for x
    x = 20,835,668.67/5,239.50
  6. Step 6: Final answer
    x = 3,976.65

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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.