Home / 2,220.77-3,063.26-1,323.90

Finding the Fourth Proportional to 2,220.77, 3,063.26 and 1,323.90

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Solution

The fourth proportional to 2,220.77, 3,063.26 and 1,323.90 is: 1,826.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.77 : 3,063.26 = 1,323.90 : x
  2. Step 2: Convert to fraction form
    2,220.77/3,063.26 = 1,323.90/x
  3. Step 3: Cross multiply
    2,220.77x = 3,063.26 × 1,323.90
  4. Step 4: Simplify right side
    2,220.77x = 4,055,443.29
  5. Step 5: Solve for x
    x = 4,055,443.29/2,220.77
  6. Step 6: Final answer
    x = 1,826.15

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Half scale
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Double scale
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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.