Home / 5,226.78-7,208.52-3,719.40

Finding the Fourth Proportional to 5,226.78, 7,208.52 and 3,719.40

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Solution

The fourth proportional to 5,226.78, 7,208.52 and 3,719.40 is: 5,129.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.78 : 7,208.52 = 3,719.40 : x
  2. Step 2: Convert to fraction form
    5,226.78/7,208.52 = 3,719.40/x
  3. Step 3: Cross multiply
    5,226.78x = 7,208.52 × 3,719.40
  4. Step 4: Simplify right side
    5,226.78x = 26,811,369.29
  5. Step 5: Solve for x
    x = 26,811,369.29/5,226.78
  6. Step 6: Final answer
    x = 5,129.62

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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.