Home / 2,189.18-3,270.21-1,969.46

Finding the Fourth Proportional to 2,189.18, 3,270.21 and 1,969.46

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Solution

The fourth proportional to 2,189.18, 3,270.21 and 1,969.46 is: 2,941.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.18 : 3,270.21 = 1,969.46 : x
  2. Step 2: Convert to fraction form
    2,189.18/3,270.21 = 1,969.46/x
  3. Step 3: Cross multiply
    2,189.18x = 3,270.21 × 1,969.46
  4. Step 4: Simplify right side
    2,189.18x = 6,440,531.44
  5. Step 5: Solve for x
    x = 6,440,531.44/2,189.18
  6. Step 6: Final answer
    x = 2,941.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.