Home / 1,189.14-1,783.99-367.40

Finding the Fourth Proportional to 1,189.14, 1,783.99 and 367.40

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Solution

The fourth proportional to 1,189.14, 1,783.99 and 367.40 is: 551.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189.14 : 1,783.99 = 367.40 : x
  2. Step 2: Convert to fraction form
    1,189.14/1,783.99 = 367.40/x
  3. Step 3: Cross multiply
    1,189.14x = 1,783.99 × 367.40
  4. Step 4: Simplify right side
    1,189.14x = 655,437.93
  5. Step 5: Solve for x
    x = 655,437.93/1,189.14
  6. Step 6: Final answer
    x = 551.19

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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.