Home / 1,513.15-2,087.94-850.03

Finding the Fourth Proportional to 1,513.15, 2,087.94 and 850.03

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Solution

The fourth proportional to 1,513.15, 2,087.94 and 850.03 is: 1,172.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.15 : 2,087.94 = 850.03 : x
  2. Step 2: Convert to fraction form
    1,513.15/2,087.94 = 850.03/x
  3. Step 3: Cross multiply
    1,513.15x = 2,087.94 × 850.03
  4. Step 4: Simplify right side
    1,513.15x = 1,774,811.64
  5. Step 5: Solve for x
    x = 1,774,811.64/1,513.15
  6. Step 6: Final answer
    x = 1,172.93

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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.