Home / 2,688.50-4,029.11-1,224.43

Finding the Fourth Proportional to 2,688.50, 4,029.11 and 1,224.43

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Solution

The fourth proportional to 2,688.50, 4,029.11 and 1,224.43 is: 1,834.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.50 : 4,029.11 = 1,224.43 : x
  2. Step 2: Convert to fraction form
    2,688.50/4,029.11 = 1,224.43/x
  3. Step 3: Cross multiply
    2,688.50x = 4,029.11 × 1,224.43
  4. Step 4: Simplify right side
    2,688.50x = 4,933,351.55
  5. Step 5: Solve for x
    x = 4,933,351.55/2,688.50
  6. Step 6: Final answer
    x = 1,834.98

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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.