Home / 6,780.14-10,171.20-2,100.57

Finding the Fourth Proportional to 6,780.14, 10,171.20 and 2,100.57

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Solution

The fourth proportional to 6,780.14, 10,171.20 and 2,100.57 is: 3,151.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.14 : 10,171.20 = 2,100.57 : x
  2. Step 2: Convert to fraction form
    6,780.14/10,171.20 = 2,100.57/x
  3. Step 3: Cross multiply
    6,780.14x = 10,171.20 × 2,100.57
  4. Step 4: Simplify right side
    6,780.14x = 21,365,256.23
  5. Step 5: Solve for x
    x = 21,365,256.23/6,780.14
  6. Step 6: Final answer
    x = 3,151.15

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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.