Home / 7,756.92-10,704.56-4,220.15

Finding the Fourth Proportional to 7,756.92, 10,704.56 and 4,220.15

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Solution

The fourth proportional to 7,756.92, 10,704.56 and 4,220.15 is: 5,823.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,756.92 : 10,704.56 = 4,220.15 : x
  2. Step 2: Convert to fraction form
    7,756.92/10,704.56 = 4,220.15/x
  3. Step 3: Cross multiply
    7,756.92x = 10,704.56 × 4,220.15
  4. Step 4: Simplify right side
    7,756.92x = 45,174,805.91
  5. Step 5: Solve for x
    x = 45,174,805.91/7,756.92
  6. Step 6: Final answer
    x = 5,823.81

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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.