Home / 5,179.40-7,760.46-3,637.64

Finding the Fourth Proportional to 5,179.40, 7,760.46 and 3,637.64

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Solution

The fourth proportional to 5,179.40, 7,760.46 and 3,637.64 is: 5,450.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.40 : 7,760.46 = 3,637.64 : x
  2. Step 2: Convert to fraction form
    5,179.40/7,760.46 = 3,637.64/x
  3. Step 3: Cross multiply
    5,179.40x = 7,760.46 × 3,637.64
  4. Step 4: Simplify right side
    5,179.40x = 28,229,759.71
  5. Step 5: Solve for x
    x = 28,229,759.71/5,179.40
  6. Step 6: Final answer
    x = 5,450.39

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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.