Home / 2,217.65-3,060.33-1,222.91

Finding the Fourth Proportional to 2,217.65, 3,060.33 and 1,222.91

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Solution

The fourth proportional to 2,217.65, 3,060.33 and 1,222.91 is: 1,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.65 : 3,060.33 = 1,222.91 : x
  2. Step 2: Convert to fraction form
    2,217.65/3,060.33 = 1,222.91/x
  3. Step 3: Cross multiply
    2,217.65x = 3,060.33 × 1,222.91
  4. Step 4: Simplify right side
    2,217.65x = 3,742,508.16
  5. Step 5: Solve for x
    x = 3,742,508.16/2,217.65
  6. Step 6: Final answer
    x = 1,687.60

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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.