Home / 2,117.67-3,176.51-1,021.83

Finding the Fourth Proportional to 2,117.67, 3,176.51 and 1,021.83

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Solution

The fourth proportional to 2,117.67, 3,176.51 and 1,021.83 is: 1,532.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.67 : 3,176.51 = 1,021.83 : x
  2. Step 2: Convert to fraction form
    2,117.67/3,176.51 = 1,021.83/x
  3. Step 3: Cross multiply
    2,117.67x = 3,176.51 × 1,021.83
  4. Step 4: Simplify right side
    2,117.67x = 3,245,848.10
  5. Step 5: Solve for x
    x = 3,245,848.10/2,117.67
  6. Step 6: Final answer
    x = 1,532.75

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Similar ratio
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1.5x scale

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.