Home / 2,121.24-3,176.38-1,465.14

Finding the Fourth Proportional to 2,121.24, 3,176.38 and 1,465.14

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Solution

The fourth proportional to 2,121.24, 3,176.38 and 1,465.14 is: 2,193.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.24 : 3,176.38 = 1,465.14 : x
  2. Step 2: Convert to fraction form
    2,121.24/3,176.38 = 1,465.14/x
  3. Step 3: Cross multiply
    2,121.24x = 3,176.38 × 1,465.14
  4. Step 4: Simplify right side
    2,121.24x = 4,653,841.39
  5. Step 5: Solve for x
    x = 4,653,841.39/2,121.24
  6. Step 6: Final answer
    x = 2,193.92

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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.