Home / 2,117.27-3,176.55-1,021.43

Finding the Fourth Proportional to 2,117.27, 3,176.55 and 1,021.43

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Solution

The fourth proportional to 2,117.27, 3,176.55 and 1,021.43 is: 1,532.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.27 : 3,176.55 = 1,021.43 : x
  2. Step 2: Convert to fraction form
    2,117.27/3,176.55 = 1,021.43/x
  3. Step 3: Cross multiply
    2,117.27x = 3,176.55 × 1,021.43
  4. Step 4: Simplify right side
    2,117.27x = 3,244,631.41
  5. Step 5: Solve for x
    x = 3,244,631.41/2,117.27
  6. Step 6: Final answer
    x = 1,532.46

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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.