Home / 2,117.74-3,177.81-1,143.82

Finding the Fourth Proportional to 2,117.74, 3,177.81 and 1,143.82

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Solution

The fourth proportional to 2,117.74, 3,177.81 and 1,143.82 is: 1,716.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.74 : 3,177.81 = 1,143.82 : x
  2. Step 2: Convert to fraction form
    2,117.74/3,177.81 = 1,143.82/x
  3. Step 3: Cross multiply
    2,117.74x = 3,177.81 × 1,143.82
  4. Step 4: Simplify right side
    2,117.74x = 3,634,842.63
  5. Step 5: Solve for x
    x = 3,634,842.63/2,117.74
  6. Step 6: Final answer
    x = 1,716.38

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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.