Home / 2,220.27-3,064.12-1,276.37

Finding the Fourth Proportional to 2,220.27, 3,064.12 and 1,276.37

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Solution

The fourth proportional to 2,220.27, 3,064.12 and 1,276.37 is: 1,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.27 : 3,064.12 = 1,276.37 : x
  2. Step 2: Convert to fraction form
    2,220.27/3,064.12 = 1,276.37/x
  3. Step 3: Cross multiply
    2,220.27x = 3,064.12 × 1,276.37
  4. Step 4: Simplify right side
    2,220.27x = 3,910,950.84
  5. Step 5: Solve for x
    x = 3,910,950.84/2,220.27
  6. Step 6: Final answer
    x = 1,761.48

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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.