Home / 5,187.11-7,158.42-2,949.37

Finding the Fourth Proportional to 5,187.11, 7,158.42 and 2,949.37

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Solution

The fourth proportional to 5,187.11, 7,158.42 and 2,949.37 is: 4,070.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.11 : 7,158.42 = 2,949.37 : x
  2. Step 2: Convert to fraction form
    5,187.11/7,158.42 = 2,949.37/x
  3. Step 3: Cross multiply
    5,187.11x = 7,158.42 × 2,949.37
  4. Step 4: Simplify right side
    5,187.11x = 21,112,811.30
  5. Step 5: Solve for x
    x = 21,112,811.30/5,187.11
  6. Step 6: Final answer
    x = 4,070.25

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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.