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Finding the Fourth Proportional to 1,344, 2,015.91 and 370.11

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Solution

The fourth proportional to 1,344, 2,015.91 and 370.11 is: 555.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344 : 2,015.91 = 370.11 : x
  2. Step 2: Convert to fraction form
    1,344/2,015.91 = 370.11/x
  3. Step 3: Cross multiply
    1,344x = 2,015.91 × 370.11
  4. Step 4: Simplify right side
    1,344x = 746,108.45
  5. Step 5: Solve for x
    x = 746,108.45/1,344
  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.