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Finding the Fourth Proportional to 5,777.28, 8,666.64 and 2,855.52

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Solution

The fourth proportional to 5,777.28, 8,666.64 and 2,855.52 is: 4,283.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777.28 : 8,666.64 = 2,855.52 : x
  2. Step 2: Convert to fraction form
    5,777.28/8,666.64 = 2,855.52/x
  3. Step 3: Cross multiply
    5,777.28x = 8,666.64 × 2,855.52
  4. Step 4: Simplify right side
    5,777.28x = 24,747,763.85
  5. Step 5: Solve for x
    x = 24,747,763.85/5,777.28
  6. Step 6: Final answer
    x = 4,283.64

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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.