Home / 5,905.50-8,150.40-3,809.22

Finding the Fourth Proportional to 5,905.50, 8,150.40 and 3,809.22

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Solution

The fourth proportional to 5,905.50, 8,150.40 and 3,809.22 is: 5,257.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,905.50 : 8,150.40 = 3,809.22 : x
  2. Step 2: Convert to fraction form
    5,905.50/8,150.40 = 3,809.22/x
  3. Step 3: Cross multiply
    5,905.50x = 8,150.40 × 3,809.22
  4. Step 4: Simplify right side
    5,905.50x = 31,046,666.69
  5. Step 5: Solve for x
    x = 31,046,666.69/5,905.50
  6. Step 6: Final answer
    x = 5,257.25

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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.