Home / 5,187.18-7,158.65-2,949.06

Finding the Fourth Proportional to 5,187.18, 7,158.65 and 2,949.06

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Solution

The fourth proportional to 5,187.18, 7,158.65 and 2,949.06 is: 4,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.18 : 7,158.65 = 2,949.06 : x
  2. Step 2: Convert to fraction form
    5,187.18/7,158.65 = 2,949.06/x
  3. Step 3: Cross multiply
    5,187.18x = 7,158.65 × 2,949.06
  4. Step 4: Simplify right side
    5,187.18x = 21,111,288.37
  5. Step 5: Solve for x
    x = 21,111,288.37/5,187.18
  6. Step 6: Final answer
    x = 4,069.90

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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.