Home / 1,101.14-1,651.20-370.21

Finding the Fourth Proportional to 1,101.14, 1,651.20 and 370.21

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Solution

The fourth proportional to 1,101.14, 1,651.20 and 370.21 is: 555.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101.14 : 1,651.20 = 370.21 : x
  2. Step 2: Convert to fraction form
    1,101.14/1,651.20 = 370.21/x
  3. Step 3: Cross multiply
    1,101.14x = 1,651.20 × 370.21
  4. Step 4: Simplify right side
    1,101.14x = 611,290.75
  5. Step 5: Solve for x
    x = 611,290.75/1,101.14
  6. Step 6: Final answer
    x = 555.14

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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.