Home / 6,721.54-10,076.43-3,209.78

Finding the Fourth Proportional to 6,721.54, 10,076.43 and 3,209.78

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Solution

The fourth proportional to 6,721.54, 10,076.43 and 3,209.78 is: 4,811.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.54 : 10,076.43 = 3,209.78 : x
  2. Step 2: Convert to fraction form
    6,721.54/10,076.43 = 3,209.78/x
  3. Step 3: Cross multiply
    6,721.54x = 10,076.43 × 3,209.78
  4. Step 4: Simplify right side
    6,721.54x = 32,343,160.71
  5. Step 5: Solve for x
    x = 32,343,160.71/6,721.54
  6. Step 6: Final answer
    x = 4,811.87

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1.5x scale

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.