Home / 5,309.86-7,962.05-1,976.73

Finding the Fourth Proportional to 5,309.86, 7,962.05 and 1,976.73

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Solution

The fourth proportional to 5,309.86, 7,962.05 and 1,976.73 is: 2,964.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.86 : 7,962.05 = 1,976.73 : x
  2. Step 2: Convert to fraction form
    5,309.86/7,962.05 = 1,976.73/x
  3. Step 3: Cross multiply
    5,309.86x = 7,962.05 × 1,976.73
  4. Step 4: Simplify right side
    5,309.86x = 15,738,823.10
  5. Step 5: Solve for x
    x = 15,738,823.10/5,309.86
  6. Step 6: Final answer
    x = 2,964.07

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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.