Home / 2,119.08-3,176.38-1,021.13

Finding the Fourth Proportional to 2,119.08, 3,176.38 and 1,021.13

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Solution

The fourth proportional to 2,119.08, 3,176.38 and 1,021.13 is: 1,530.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.08 : 3,176.38 = 1,021.13 : x
  2. Step 2: Convert to fraction form
    2,119.08/3,176.38 = 1,021.13/x
  3. Step 3: Cross multiply
    2,119.08x = 3,176.38 × 1,021.13
  4. Step 4: Simplify right side
    2,119.08x = 3,243,475.92
  5. Step 5: Solve for x
    x = 3,243,475.92/2,119.08
  6. Step 6: Final answer
    x = 1,530.61

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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.