Home / 1,512.20-2,265.06-1,220.60

Finding the Fourth Proportional to 1,512.20, 2,265.06 and 1,220.60

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Solution

The fourth proportional to 1,512.20, 2,265.06 and 1,220.60 is: 1,828.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.20 : 2,265.06 = 1,220.60 : x
  2. Step 2: Convert to fraction form
    1,512.20/2,265.06 = 1,220.60/x
  3. Step 3: Cross multiply
    1,512.20x = 2,265.06 × 1,220.60
  4. Step 4: Simplify right side
    1,512.20x = 2,764,732.24
  5. Step 5: Solve for x
    x = 2,764,732.24/1,512.20
  6. Step 6: Final answer
    x = 1,828.28

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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.