Home / 3,914.18-5,388.09-3,416.03

Finding the Fourth Proportional to 3,914.18, 5,388.09 and 3,416.03

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Solution

The fourth proportional to 3,914.18, 5,388.09 and 3,416.03 is: 4,702.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.18 : 5,388.09 = 3,416.03 : x
  2. Step 2: Convert to fraction form
    3,914.18/5,388.09 = 3,416.03/x
  3. Step 3: Cross multiply
    3,914.18x = 5,388.09 × 3,416.03
  4. Step 4: Simplify right side
    3,914.18x = 18,405,877.08
  5. Step 5: Solve for x
    x = 18,405,877.08/3,914.18
  6. Step 6: Final answer
    x = 4,702.36

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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.