Home / 3,831.47-5,747.24-2,099.15

Finding the Fourth Proportional to 3,831.47, 5,747.24 and 2,099.15

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Solution

The fourth proportional to 3,831.47, 5,747.24 and 2,099.15 is: 3,148.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.47 : 5,747.24 = 2,099.15 : x
  2. Step 2: Convert to fraction form
    3,831.47/5,747.24 = 2,099.15/x
  3. Step 3: Cross multiply
    3,831.47x = 5,747.24 × 2,099.15
  4. Step 4: Simplify right side
    3,831.47x = 12,064,279.61
  5. Step 5: Solve for x
    x = 12,064,279.61/3,831.47
  6. Step 6: Final answer
    x = 3,148.74

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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.