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Finding the Fourth Proportional to 2,771.98, 4,158.48 and 922.92

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Solution

The fourth proportional to 2,771.98, 4,158.48 and 922.92 is: 1,384.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.98 : 4,158.48 = 922.92 : x
  2. Step 2: Convert to fraction form
    2,771.98/4,158.48 = 922.92/x
  3. Step 3: Cross multiply
    2,771.98x = 4,158.48 × 922.92
  4. Step 4: Simplify right side
    2,771.98x = 3,837,939.75
  5. Step 5: Solve for x
    x = 3,837,939.75/2,771.98
  6. Step 6: Final answer
    x = 1,384.55

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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.