Home / 7,757.02-10,704.91-4,220.45

Finding the Fourth Proportional to 7,757.02, 10,704.91 and 4,220.45

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Solution

The fourth proportional to 7,757.02, 10,704.91 and 4,220.45 is: 5,824.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,757.02 : 10,704.91 = 4,220.45 : x
  2. Step 2: Convert to fraction form
    7,757.02/10,704.91 = 4,220.45/x
  3. Step 3: Cross multiply
    7,757.02x = 10,704.91 × 4,220.45
  4. Step 4: Simplify right side
    7,757.02x = 45,179,581.61
  5. Step 5: Solve for x
    x = 45,179,581.61/7,757.02
  6. Step 6: Final answer
    x = 5,824.35

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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.