Home / 2,418.90-3,628.28-1,438.44

Finding the Fourth Proportional to 2,418.90, 3,628.28 and 1,438.44

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Solution

The fourth proportional to 2,418.90, 3,628.28 and 1,438.44 is: 2,157.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.90 : 3,628.28 = 1,438.44 : x
  2. Step 2: Convert to fraction form
    2,418.90/3,628.28 = 1,438.44/x
  3. Step 3: Cross multiply
    2,418.90x = 3,628.28 × 1,438.44
  4. Step 4: Simplify right side
    2,418.90x = 5,219,063.08
  5. Step 5: Solve for x
    x = 5,219,063.08/2,418.90
  6. Step 6: Final answer
    x = 2,157.62

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1.5x scale

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.