Home / 7,408.19-11,115.39-3,246.05

Finding the Fourth Proportional to 7,408.19, 11,115.39 and 3,246.05

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Solution

The fourth proportional to 7,408.19, 11,115.39 and 3,246.05 is: 4,870.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.19 : 11,115.39 = 3,246.05 : x
  2. Step 2: Convert to fraction form
    7,408.19/11,115.39 = 3,246.05/x
  3. Step 3: Cross multiply
    7,408.19x = 11,115.39 × 3,246.05
  4. Step 4: Simplify right side
    7,408.19x = 36,081,111.71
  5. Step 5: Solve for x
    x = 36,081,111.71/7,408.19
  6. Step 6: Final answer
    x = 4,870.44

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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.