Home / 2,220.76-3,064.98-1,336.96

Finding the Fourth Proportional to 2,220.76, 3,064.98 and 1,336.96

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Solution

The fourth proportional to 2,220.76, 3,064.98 and 1,336.96 is: 1,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.76 : 3,064.98 = 1,336.96 : x
  2. Step 2: Convert to fraction form
    2,220.76/3,064.98 = 1,336.96/x
  3. Step 3: Cross multiply
    2,220.76x = 3,064.98 × 1,336.96
  4. Step 4: Simplify right side
    2,220.76x = 4,097,755.66
  5. Step 5: Solve for x
    x = 4,097,755.66/2,220.76
  6. Step 6: Final answer
    x = 1,845.20

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Half 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.