Home / 7,328.78-10,993.54-2,135.06

Finding the Fourth Proportional to 7,328.78, 10,993.54 and 2,135.06

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Solution

The fourth proportional to 7,328.78, 10,993.54 and 2,135.06 is: 3,202.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.78 : 10,993.54 = 2,135.06 : x
  2. Step 2: Convert to fraction form
    7,328.78/10,993.54 = 2,135.06/x
  3. Step 3: Cross multiply
    7,328.78x = 10,993.54 × 2,135.06
  4. Step 4: Simplify right side
    7,328.78x = 23,471,867.51
  5. Step 5: Solve for x
    x = 23,471,867.51/7,328.78
  6. Step 6: Final answer
    x = 3,202.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.