Home / 2,824.20-4,240.22-1,438.50

Finding the Fourth Proportional to 2,824.20, 4,240.22 and 1,438.50

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Solution

The fourth proportional to 2,824.20, 4,240.22 and 1,438.50 is: 2,159.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.20 : 4,240.22 = 1,438.50 : x
  2. Step 2: Convert to fraction form
    2,824.20/4,240.22 = 1,438.50/x
  3. Step 3: Cross multiply
    2,824.20x = 4,240.22 × 1,438.50
  4. Step 4: Simplify right side
    2,824.20x = 6,099,556.47
  5. Step 5: Solve for x
    x = 6,099,556.47/2,824.20
  6. Step 6: Final answer
    x = 2,159.75

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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.