Home / 5,165.28-7,741.58-2,388.20

Finding the Fourth Proportional to 5,165.28, 7,741.58 and 2,388.20

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Solution

The fourth proportional to 5,165.28, 7,741.58 and 2,388.20 is: 3,579.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.28 : 7,741.58 = 2,388.20 : x
  2. Step 2: Convert to fraction form
    5,165.28/7,741.58 = 2,388.20/x
  3. Step 3: Cross multiply
    5,165.28x = 7,741.58 × 2,388.20
  4. Step 4: Simplify right side
    5,165.28x = 18,488,441.36
  5. Step 5: Solve for x
    x = 18,488,441.36/5,165.28
  6. Step 6: Final answer
    x = 3,579.37

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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.