Home / 2,117.17-3,177.78-1,193.77

Finding the Fourth Proportional to 2,117.17, 3,177.78 and 1,193.77

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Solution

The fourth proportional to 2,117.17, 3,177.78 and 1,193.77 is: 1,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.17 : 3,177.78 = 1,193.77 : x
  2. Step 2: Convert to fraction form
    2,117.17/3,177.78 = 1,193.77/x
  3. Step 3: Cross multiply
    2,117.17x = 3,177.78 × 1,193.77
  4. Step 4: Simplify right side
    2,117.17x = 3,793,538.43
  5. Step 5: Solve for x
    x = 3,793,538.43/2,117.17
  6. Step 6: Final answer
    x = 1,791.80

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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.