Home / 2,220.30-3,063.93-1,275.42

Finding the Fourth Proportional to 2,220.30, 3,063.93 and 1,275.42

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Solution

The fourth proportional to 2,220.30, 3,063.93 and 1,275.42 is: 1,760.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.30 : 3,063.93 = 1,275.42 : x
  2. Step 2: Convert to fraction form
    2,220.30/3,063.93 = 1,275.42/x
  3. Step 3: Cross multiply
    2,220.30x = 3,063.93 × 1,275.42
  4. Step 4: Simplify right side
    2,220.30x = 3,907,797.60
  5. Step 5: Solve for x
    x = 3,907,797.60/2,220.30
  6. Step 6: Final answer
    x = 1,760.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.