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Finding the Fourth Proportional to 5,878.27, 8,818.78 and 1,929.72

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Solution

The fourth proportional to 5,878.27, 8,818.78 and 1,929.72 is: 2,895.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.27 : 8,818.78 = 1,929.72 : x
  2. Step 2: Convert to fraction form
    5,878.27/8,818.78 = 1,929.72/x
  3. Step 3: Cross multiply
    5,878.27x = 8,818.78 × 1,929.72
  4. Step 4: Simplify right side
    5,878.27x = 17,017,776.14
  5. Step 5: Solve for x
    x = 17,017,776.14/5,878.27
  6. Step 6: Final answer
    x = 2,895.03

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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.