Home / 1,513.11-2,087.93-850.04

Finding the Fourth Proportional to 1,513.11, 2,087.93 and 850.04

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Solution

The fourth proportional to 1,513.11, 2,087.93 and 850.04 is: 1,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.11 : 2,087.93 = 850.04 : x
  2. Step 2: Convert to fraction form
    1,513.11/2,087.93 = 850.04/x
  3. Step 3: Cross multiply
    1,513.11x = 2,087.93 × 850.04
  4. Step 4: Simplify right side
    1,513.11x = 1,774,809.33
  5. Step 5: Solve for x
    x = 1,774,809.33/1,513.11
  6. Step 6: Final answer
    x = 1,172.95

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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.