Home / 5,178.42-7,766.01-2,253.78

Finding the Fourth Proportional to 5,178.42, 7,766.01 and 2,253.78

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Solution

The fourth proportional to 5,178.42, 7,766.01 and 2,253.78 is: 3,379.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.42 : 7,766.01 = 2,253.78 : x
  2. Step 2: Convert to fraction form
    5,178.42/7,766.01 = 2,253.78/x
  3. Step 3: Cross multiply
    5,178.42x = 7,766.01 × 2,253.78
  4. Step 4: Simplify right side
    5,178.42x = 17,502,878.02
  5. Step 5: Solve for x
    x = 17,502,878.02/5,178.42
  6. Step 6: Final answer
    x = 3,379.96

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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.