Home / 2,216.61-3,059.11-1,222

Finding the Fourth Proportional to 2,216.61, 3,059.11 and 1,222

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Solution

The fourth proportional to 2,216.61, 3,059.11 and 1,222 is: 1,686.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.61 : 3,059.11 = 1,222 : x
  2. Step 2: Convert to fraction form
    2,216.61/3,059.11 = 1,222/x
  3. Step 3: Cross multiply
    2,216.61x = 3,059.11 × 1,222
  4. Step 4: Simplify right side
    2,216.61x = 3,738,229.37
  5. Step 5: Solve for x
    x = 3,738,229.37/2,216.61
  6. Step 6: Final answer
    x = 1,686.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.