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Finding the Fourth Proportional to 5,872.78, 8,810.42 and 1,923.74

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Solution

The fourth proportional to 5,872.78, 8,810.42 and 1,923.74 is: 2,886.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.78 : 8,810.42 = 1,923.74 : x
  2. Step 2: Convert to fraction form
    5,872.78/8,810.42 = 1,923.74/x
  3. Step 3: Cross multiply
    5,872.78x = 8,810.42 × 1,923.74
  4. Step 4: Simplify right side
    5,872.78x = 16,948,969.78
  5. Step 5: Solve for x
    x = 16,948,969.78/5,872.78
  6. Step 6: Final answer
    x = 2,886.02

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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.