Home / 2,218.81-3,328.22-1,064.29

Finding the Fourth Proportional to 2,218.81, 3,328.22 and 1,064.29

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Solution

The fourth proportional to 2,218.81, 3,328.22 and 1,064.29 is: 1,596.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.81 : 3,328.22 = 1,064.29 : x
  2. Step 2: Convert to fraction form
    2,218.81/3,328.22 = 1,064.29/x
  3. Step 3: Cross multiply
    2,218.81x = 3,328.22 × 1,064.29
  4. Step 4: Simplify right side
    2,218.81x = 3,542,191.26
  5. Step 5: Solve for x
    x = 3,542,191.26/2,218.81
  6. Step 6: Final answer
    x = 1,596.44

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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.