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Finding the Fourth Proportional to 5,876.62, 8,814.96 and 1,981.06

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Solution

The fourth proportional to 5,876.62, 8,814.96 and 1,981.06 is: 2,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,876.62 : 8,814.96 = 1,981.06 : x
  2. Step 2: Convert to fraction form
    5,876.62/8,814.96 = 1,981.06/x
  3. Step 3: Cross multiply
    5,876.62x = 8,814.96 × 1,981.06
  4. Step 4: Simplify right side
    5,876.62x = 17,462,964.66
  5. Step 5: Solve for x
    x = 17,462,964.66/5,876.62
  6. Step 6: Final answer
    x = 2,971.60

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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.