Home / 1,191.23-1,787.04-369.30

Finding the Fourth Proportional to 1,191.23, 1,787.04 and 369.30

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Solution

The fourth proportional to 1,191.23, 1,787.04 and 369.30 is: 554.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191.23 : 1,787.04 = 369.30 : x
  2. Step 2: Convert to fraction form
    1,191.23/1,787.04 = 369.30/x
  3. Step 3: Cross multiply
    1,191.23x = 1,787.04 × 369.30
  4. Step 4: Simplify right side
    1,191.23x = 659,953.87
  5. Step 5: Solve for x
    x = 659,953.87/1,191.23
  6. Step 6: Final answer
    x = 554.01

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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.