Home / 3,831.40-5,747.10-3,653.20

Finding the Fourth Proportional to 3,831.40, 5,747.10 and 3,653.20

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Solution

The fourth proportional to 3,831.40, 5,747.10 and 3,653.20 is: 5,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.40 : 5,747.10 = 3,653.20 : x
  2. Step 2: Convert to fraction form
    3,831.40/5,747.10 = 3,653.20/x
  3. Step 3: Cross multiply
    3,831.40x = 5,747.10 × 3,653.20
  4. Step 4: Simplify right side
    3,831.40x = 20,995,305.72
  5. Step 5: Solve for x
    x = 20,995,305.72/3,831.40
  6. Step 6: Final answer
    x = 5,479.80

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Similar ratio
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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.