Home / 5,878.43-8,112.65-3,885.53

Finding the Fourth Proportional to 5,878.43, 8,112.65 and 3,885.53

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Solution

The fourth proportional to 5,878.43, 8,112.65 and 3,885.53 is: 5,362.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.43 : 8,112.65 = 3,885.53 : x
  2. Step 2: Convert to fraction form
    5,878.43/8,112.65 = 3,885.53/x
  3. Step 3: Cross multiply
    5,878.43x = 8,112.65 × 3,885.53
  4. Step 4: Simplify right side
    5,878.43x = 31,521,914.11
  5. Step 5: Solve for x
    x = 31,521,914.11/5,878.43
  6. Step 6: Final answer
    x = 5,362.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.