Home / 2,217.24-3,059.90-1,222.51

Finding the Fourth Proportional to 2,217.24, 3,059.90 and 1,222.51

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Solution

The fourth proportional to 2,217.24, 3,059.90 and 1,222.51 is: 1,687.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.24 : 3,059.90 = 1,222.51 : x
  2. Step 2: Convert to fraction form
    2,217.24/3,059.90 = 1,222.51/x
  3. Step 3: Cross multiply
    2,217.24x = 3,059.90 × 1,222.51
  4. Step 4: Simplify right side
    2,217.24x = 3,740,758.35
  5. Step 5: Solve for x
    x = 3,740,758.35/2,217.24
  6. Step 6: Final answer
    x = 1,687.13

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1.5x scale

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.