Home / 1,816.11-2,505.50-1,068.88

Finding the Fourth Proportional to 1,816.11, 2,505.50 and 1,068.88

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Solution

The fourth proportional to 1,816.11, 2,505.50 and 1,068.88 is: 1,474.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.11 : 2,505.50 = 1,068.88 : x
  2. Step 2: Convert to fraction form
    1,816.11/2,505.50 = 1,068.88/x
  3. Step 3: Cross multiply
    1,816.11x = 2,505.50 × 1,068.88
  4. Step 4: Simplify right side
    1,816.11x = 2,678,078.84
  5. Step 5: Solve for x
    x = 2,678,078.84/1,816.11
  6. Step 6: Final answer
    x = 1,474.62

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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.