Home / 3,892.89-5,838.48-1,118.95

Finding the Fourth Proportional to 3,892.89, 5,838.48 and 1,118.95

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Solution

The fourth proportional to 3,892.89, 5,838.48 and 1,118.95 is: 1,678.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.89 : 5,838.48 = 1,118.95 : x
  2. Step 2: Convert to fraction form
    3,892.89/5,838.48 = 1,118.95/x
  3. Step 3: Cross multiply
    3,892.89x = 5,838.48 × 1,118.95
  4. Step 4: Simplify right side
    3,892.89x = 6,532,952.60
  5. Step 5: Solve for x
    x = 6,532,952.60/3,892.89
  6. Step 6: Final answer
    x = 1,678.17

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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.