Home / 7,743.56-10,685.97-4,206.78

Finding the Fourth Proportional to 7,743.56, 10,685.97 and 4,206.78

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Solution

The fourth proportional to 7,743.56, 10,685.97 and 4,206.78 is: 5,805.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.56 : 10,685.97 = 4,206.78 : x
  2. Step 2: Convert to fraction form
    7,743.56/10,685.97 = 4,206.78/x
  3. Step 3: Cross multiply
    7,743.56x = 10,685.97 × 4,206.78
  4. Step 4: Simplify right side
    7,743.56x = 44,953,524.88
  5. Step 5: Solve for x
    x = 44,953,524.88/7,743.56
  6. Step 6: Final answer
    x = 5,805.28

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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.