Home / 2,117.91-3,177.68-1,022.18

Finding the Fourth Proportional to 2,117.91, 3,177.68 and 1,022.18

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Solution

The fourth proportional to 2,117.91, 3,177.68 and 1,022.18 is: 1,533.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.91 : 3,177.68 = 1,022.18 : x
  2. Step 2: Convert to fraction form
    2,117.91/3,177.68 = 1,022.18/x
  3. Step 3: Cross multiply
    2,117.91x = 3,177.68 × 1,022.18
  4. Step 4: Simplify right side
    2,117.91x = 3,248,163.78
  5. Step 5: Solve for x
    x = 3,248,163.78/2,117.91
  6. Step 6: Final answer
    x = 1,533.66

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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.