Home / 7,700.55-11,551.74-2,769.78

Finding the Fourth Proportional to 7,700.55, 11,551.74 and 2,769.78

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Solution

The fourth proportional to 7,700.55, 11,551.74 and 2,769.78 is: 4,155.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,700.55 : 11,551.74 = 2,769.78 : x
  2. Step 2: Convert to fraction form
    7,700.55/11,551.74 = 2,769.78/x
  3. Step 3: Cross multiply
    7,700.55x = 11,551.74 × 2,769.78
  4. Step 4: Simplify right side
    7,700.55x = 31,995,778.42
  5. Step 5: Solve for x
    x = 31,995,778.42/7,700.55
  6. Step 6: Final answer
    x = 4,155.00

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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.