Home / 2,220.48-3,063.70-1,276.54

Finding the Fourth Proportional to 2,220.48, 3,063.70 and 1,276.54

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Solution

The fourth proportional to 2,220.48, 3,063.70 and 1,276.54 is: 1,761.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.48 : 3,063.70 = 1,276.54 : x
  2. Step 2: Convert to fraction form
    2,220.48/3,063.70 = 1,276.54/x
  3. Step 3: Cross multiply
    2,220.48x = 3,063.70 × 1,276.54
  4. Step 4: Simplify right side
    2,220.48x = 3,910,929.53
  5. Step 5: Solve for x
    x = 3,910,929.53/2,220.48
  6. Step 6: Final answer
    x = 1,761.30

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1.5x scale

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.