Home / 2,192.16-3,288.72-1,267.68

Finding the Fourth Proportional to 2,192.16, 3,288.72 and 1,267.68

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Solution

The fourth proportional to 2,192.16, 3,288.72 and 1,267.68 is: 1,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.16 : 3,288.72 = 1,267.68 : x
  2. Step 2: Convert to fraction form
    2,192.16/3,288.72 = 1,267.68/x
  3. Step 3: Cross multiply
    2,192.16x = 3,288.72 × 1,267.68
  4. Step 4: Simplify right side
    2,192.16x = 4,169,044.57
  5. Step 5: Solve for x
    x = 4,169,044.57/2,192.16
  6. Step 6: Final answer
    x = 1,901.80

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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.