Home / 3,831.39-5,287.41-2,152.93

Finding the Fourth Proportional to 3,831.39, 5,287.41 and 2,152.93

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Solution

The fourth proportional to 3,831.39, 5,287.41 and 2,152.93 is: 2,971.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.39 : 5,287.41 = 2,152.93 : x
  2. Step 2: Convert to fraction form
    3,831.39/5,287.41 = 2,152.93/x
  3. Step 3: Cross multiply
    3,831.39x = 5,287.41 × 2,152.93
  4. Step 4: Simplify right side
    3,831.39x = 11,383,423.61
  5. Step 5: Solve for x
    x = 11,383,423.61/3,831.39
  6. Step 6: Final answer
    x = 2,971.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.