Home / 5,780.09-7,976.49-3,127.48

Finding the Fourth Proportional to 5,780.09, 7,976.49 and 3,127.48

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Solution

The fourth proportional to 5,780.09, 7,976.49 and 3,127.48 is: 4,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.09 : 7,976.49 = 3,127.48 : x
  2. Step 2: Convert to fraction form
    5,780.09/7,976.49 = 3,127.48/x
  3. Step 3: Cross multiply
    5,780.09x = 7,976.49 × 3,127.48
  4. Step 4: Simplify right side
    5,780.09x = 24,946,273.06
  5. Step 5: Solve for x
    x = 24,946,273.06/5,780.09
  6. Step 6: Final answer
    x = 4,315.90

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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.