Home / 2,638,305.60-3,945,648.60-2,213,152.80

Finding the Fourth Proportional to 2,638,305.60, 3,945,648.60 and 2,213,152.80

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Solution

The fourth proportional to 2,638,305.60, 3,945,648.60 and 2,213,152.80 is: 3,309,822.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,305.60 : 3,945,648.60 = 2,213,152.80 : x
  2. Step 2: Convert to fraction form
    2,638,305.60/3,945,648.60 = 2,213,152.80/x
  3. Step 3: Cross multiply
    2,638,305.60x = 3,945,648.60 × 2,213,152.80
  4. Step 4: Simplify right side
    2,638,305.60x = 8,732,323,246,906.08
  5. Step 5: Solve for x
    x = 8,732,323,246,906.08/2,638,305.60
  6. Step 6: Final answer
    x = 3,309,822.50

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Double scale
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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.