Home / 4,918.40-7,376.42-1,408.30

Finding the Fourth Proportional to 4,918.40, 7,376.42 and 1,408.30

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Solution

The fourth proportional to 4,918.40, 7,376.42 and 1,408.30 is: 2,112.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.40 : 7,376.42 = 1,408.30 : x
  2. Step 2: Convert to fraction form
    4,918.40/7,376.42 = 1,408.30/x
  3. Step 3: Cross multiply
    4,918.40x = 7,376.42 × 1,408.30
  4. Step 4: Simplify right side
    4,918.40x = 10,388,212.29
  5. Step 5: Solve for x
    x = 10,388,212.29/4,918.40
  6. Step 6: Final answer
    x = 2,112.11

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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.