Home / 2,117.54-3,177.12-1,021.82

Finding the Fourth Proportional to 2,117.54, 3,177.12 and 1,021.82

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Solution

The fourth proportional to 2,117.54, 3,177.12 and 1,021.82 is: 1,533.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.54 : 3,177.12 = 1,021.82 : x
  2. Step 2: Convert to fraction form
    2,117.54/3,177.12 = 1,021.82/x
  3. Step 3: Cross multiply
    2,117.54x = 3,177.12 × 1,021.82
  4. Step 4: Simplify right side
    2,117.54x = 3,246,428.87
  5. Step 5: Solve for x
    x = 3,246,428.87/2,117.54
  6. Step 6: Final answer
    x = 1,533.12

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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.