Home / 2,217.40-3,328.44-1,342.10

Finding the Fourth Proportional to 2,217.40, 3,328.44 and 1,342.10

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Solution

The fourth proportional to 2,217.40, 3,328.44 and 1,342.10 is: 2,014.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.40 : 3,328.44 = 1,342.10 : x
  2. Step 2: Convert to fraction form
    2,217.40/3,328.44 = 1,342.10/x
  3. Step 3: Cross multiply
    2,217.40x = 3,328.44 × 1,342.10
  4. Step 4: Simplify right side
    2,217.40x = 4,467,099.32
  5. Step 5: Solve for x
    x = 4,467,099.32/2,217.40
  6. Step 6: Final answer
    x = 2,014.57

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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.