Home / 2,208.79-3,310.17-1,220.13

Finding the Fourth Proportional to 2,208.79, 3,310.17 and 1,220.13

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Solution

The fourth proportional to 2,208.79, 3,310.17 and 1,220.13 is: 1,828.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.79 : 3,310.17 = 1,220.13 : x
  2. Step 2: Convert to fraction form
    2,208.79/3,310.17 = 1,220.13/x
  3. Step 3: Cross multiply
    2,208.79x = 3,310.17 × 1,220.13
  4. Step 4: Simplify right side
    2,208.79x = 4,038,833.15
  5. Step 5: Solve for x
    x = 4,038,833.15/2,208.79
  6. Step 6: Final answer
    x = 1,828.53

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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.