Home / 3,831.46-5,287.43-2,152.93

Finding the Fourth Proportional to 3,831.46, 5,287.43 and 2,152.93

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Solution

The fourth proportional to 3,831.46, 5,287.43 and 2,152.93 is: 2,971.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.46 : 5,287.43 = 2,152.93 : x
  2. Step 2: Convert to fraction form
    3,831.46/5,287.43 = 2,152.93/x
  3. Step 3: Cross multiply
    3,831.46x = 5,287.43 × 2,152.93
  4. Step 4: Simplify right side
    3,831.46x = 11,383,466.67
  5. Step 5: Solve for x
    x = 11,383,466.67/3,831.46
  6. Step 6: Final answer
    x = 2,971.05

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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.