Home / 1,211.18-1,816.96-441.50

Finding the Fourth Proportional to 1,211.18, 1,816.96 and 441.50

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Solution

The fourth proportional to 1,211.18, 1,816.96 and 441.50 is: 662.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211.18 : 1,816.96 = 441.50 : x
  2. Step 2: Convert to fraction form
    1,211.18/1,816.96 = 441.50/x
  3. Step 3: Cross multiply
    1,211.18x = 1,816.96 × 441.50
  4. Step 4: Simplify right side
    1,211.18x = 802,187.84
  5. Step 5: Solve for x
    x = 802,187.84/1,211.18
  6. Step 6: Final answer
    x = 662.32

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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.