Home / 1,549.49-2,138.27-850.86

Finding the Fourth Proportional to 1,549.49, 2,138.27 and 850.86

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Solution

The fourth proportional to 1,549.49, 2,138.27 and 850.86 is: 1,174.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.49 : 2,138.27 = 850.86 : x
  2. Step 2: Convert to fraction form
    1,549.49/2,138.27 = 850.86/x
  3. Step 3: Cross multiply
    1,549.49x = 2,138.27 × 850.86
  4. Step 4: Simplify right side
    1,549.49x = 1,819,364.16
  5. Step 5: Solve for x
    x = 1,819,364.16/1,549.49
  6. Step 6: Final answer
    x = 1,174.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.