Home / 2,217.32-3,328.02-1,122.45

Finding the Fourth Proportional to 2,217.32, 3,328.02 and 1,122.45

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Solution

The fourth proportional to 2,217.32, 3,328.02 and 1,122.45 is: 1,684.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.32 : 3,328.02 = 1,122.45 : x
  2. Step 2: Convert to fraction form
    2,217.32/3,328.02 = 1,122.45/x
  3. Step 3: Cross multiply
    2,217.32x = 3,328.02 × 1,122.45
  4. Step 4: Simplify right side
    2,217.32x = 3,735,536.05
  5. Step 5: Solve for x
    x = 3,735,536.05/2,217.32
  6. Step 6: Final answer
    x = 1,684.71

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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.