Home / 5,375.28-7,412.40-3,783.36

Finding the Fourth Proportional to 5,375.28, 7,412.40 and 3,783.36

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Solution

The fourth proportional to 5,375.28, 7,412.40 and 3,783.36 is: 5,217.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.28 : 7,412.40 = 3,783.36 : x
  2. Step 2: Convert to fraction form
    5,375.28/7,412.40 = 3,783.36/x
  3. Step 3: Cross multiply
    5,375.28x = 7,412.40 × 3,783.36
  4. Step 4: Simplify right side
    5,375.28x = 28,043,777.66
  5. Step 5: Solve for x
    x = 28,043,777.66/5,375.28
  6. Step 6: Final answer
    x = 5,217.18

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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.