Home / 7,757.19-10,704.89-4,220.46

Finding the Fourth Proportional to 7,757.19, 10,704.89 and 4,220.46

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Solution

The fourth proportional to 7,757.19, 10,704.89 and 4,220.46 is: 5,824.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,757.19 : 10,704.89 = 4,220.46 : x
  2. Step 2: Convert to fraction form
    7,757.19/10,704.89 = 4,220.46/x
  3. Step 3: Cross multiply
    7,757.19x = 10,704.89 × 4,220.46
  4. Step 4: Simplify right side
    7,757.19x = 45,179,570.60
  5. Step 5: Solve for x
    x = 45,179,570.60/7,757.19
  6. Step 6: Final answer
    x = 5,824.22

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Half scale
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Double scale
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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.