Home / 3,905.44-5,389.61-2,334.45

Finding the Fourth Proportional to 3,905.44, 5,389.61 and 2,334.45

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Solution

The fourth proportional to 3,905.44, 5,389.61 and 2,334.45 is: 3,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.44 : 5,389.61 = 2,334.45 : x
  2. Step 2: Convert to fraction form
    3,905.44/5,389.61 = 2,334.45/x
  3. Step 3: Cross multiply
    3,905.44x = 5,389.61 × 2,334.45
  4. Step 4: Simplify right side
    3,905.44x = 12,581,775.06
  5. Step 5: Solve for x
    x = 12,581,775.06/3,905.44
  6. Step 6: Final answer
    x = 3,221.60

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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.