Home / 2,220.26-3,320.64-1,812.02

Finding the Fourth Proportional to 2,220.26, 3,320.64 and 1,812.02

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Solution

The fourth proportional to 2,220.26, 3,320.64 and 1,812.02 is: 2,710.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.26 : 3,320.64 = 1,812.02 : x
  2. Step 2: Convert to fraction form
    2,220.26/3,320.64 = 1,812.02/x
  3. Step 3: Cross multiply
    2,220.26x = 3,320.64 × 1,812.02
  4. Step 4: Simplify right side
    2,220.26x = 6,017,049.49
  5. Step 5: Solve for x
    x = 6,017,049.49/2,220.26
  6. Step 6: Final answer
    x = 2,710.07

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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.