Home / 7,408.40-11,106.06-3,705.38

Finding the Fourth Proportional to 7,408.40, 11,106.06 and 3,705.38

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Solution

The fourth proportional to 7,408.40, 11,106.06 and 3,705.38 is: 5,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.40 : 11,106.06 = 3,705.38 : x
  2. Step 2: Convert to fraction form
    7,408.40/11,106.06 = 3,705.38/x
  3. Step 3: Cross multiply
    7,408.40x = 11,106.06 × 3,705.38
  4. Step 4: Simplify right side
    7,408.40x = 41,152,165.67
  5. Step 5: Solve for x
    x = 41,152,165.67/7,408.40
  6. Step 6: Final answer
    x = 5,554.80

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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.