Home / 2,217.22-3,325.03-811.26

Finding the Fourth Proportional to 2,217.22, 3,325.03 and 811.26

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Solution

The fourth proportional to 2,217.22, 3,325.03 and 811.26 is: 1,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.22 : 3,325.03 = 811.26 : x
  2. Step 2: Convert to fraction form
    2,217.22/3,325.03 = 811.26/x
  3. Step 3: Cross multiply
    2,217.22x = 3,325.03 × 811.26
  4. Step 4: Simplify right side
    2,217.22x = 2,697,463.84
  5. Step 5: Solve for x
    x = 2,697,463.84/2,217.22
  6. Step 6: Final answer
    x = 1,216.60

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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.