Home / 2,605.28-3,912.76-2,144.08

Finding the Fourth Proportional to 2,605.28, 3,912.76 and 2,144.08

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Solution

The fourth proportional to 2,605.28, 3,912.76 and 2,144.08 is: 3,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.28 : 3,912.76 = 2,144.08 : x
  2. Step 2: Convert to fraction form
    2,605.28/3,912.76 = 2,144.08/x
  3. Step 3: Cross multiply
    2,605.28x = 3,912.76 × 2,144.08
  4. Step 4: Simplify right side
    2,605.28x = 8,389,270.46
  5. Step 5: Solve for x
    x = 8,389,270.46/2,605.28
  6. Step 6: Final answer
    x = 3,220.10

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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.