Home / 2,140.67-3,205.18-2,017.75

Finding the Fourth Proportional to 2,140.67, 3,205.18 and 2,017.75

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Solution

The fourth proportional to 2,140.67, 3,205.18 and 2,017.75 is: 3,021.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.67 : 3,205.18 = 2,017.75 : x
  2. Step 2: Convert to fraction form
    2,140.67/3,205.18 = 2,017.75/x
  3. Step 3: Cross multiply
    2,140.67x = 3,205.18 × 2,017.75
  4. Step 4: Simplify right side
    2,140.67x = 6,467,251.95
  5. Step 5: Solve for x
    x = 6,467,251.95/2,140.67
  6. Step 6: Final answer
    x = 3,021.13

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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.