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Finding the Fourth Proportional to 5,878.44, 8,816.64 and 1,929.64

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Solution

The fourth proportional to 5,878.44, 8,816.64 and 1,929.64 is: 2,894.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.44 : 8,816.64 = 1,929.64 : x
  2. Step 2: Convert to fraction form
    5,878.44/8,816.64 = 1,929.64/x
  3. Step 3: Cross multiply
    5,878.44x = 8,816.64 × 1,929.64
  4. Step 4: Simplify right side
    5,878.44x = 17,012,941.21
  5. Step 5: Solve for x
    x = 17,012,941.21/5,878.44
  6. Step 6: Final answer
    x = 2,894.13

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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.