Home / 3,757.20-5,638.04-1,808.40

Finding the Fourth Proportional to 3,757.20, 5,638.04 and 1,808.40

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Solution

The fourth proportional to 3,757.20, 5,638.04 and 1,808.40 is: 2,713.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,757.20 : 5,638.04 = 1,808.40 : x
  2. Step 2: Convert to fraction form
    3,757.20/5,638.04 = 1,808.40/x
  3. Step 3: Cross multiply
    3,757.20x = 5,638.04 × 1,808.40
  4. Step 4: Simplify right side
    3,757.20x = 10,195,831.54
  5. Step 5: Solve for x
    x = 10,195,831.54/3,757.20
  6. Step 6: Final answer
    x = 2,713.68

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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.