Home / 5,780.09-7,976.53-3,127.49

Finding the Fourth Proportional to 5,780.09, 7,976.53 and 3,127.49

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Solution

The fourth proportional to 5,780.09, 7,976.53 and 3,127.49 is: 4,315.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.09 : 7,976.53 = 3,127.49 : x
  2. Step 2: Convert to fraction form
    5,780.09/7,976.53 = 3,127.49/x
  3. Step 3: Cross multiply
    5,780.09x = 7,976.53 × 3,127.49
  4. Step 4: Simplify right side
    5,780.09x = 24,946,556.62
  5. Step 5: Solve for x
    x = 24,946,556.62/5,780.09
  6. Step 6: Final answer
    x = 4,315.94

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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.