Home / 3,831.17-5,285.73-2,152.25

Finding the Fourth Proportional to 3,831.17, 5,285.73 and 2,152.25

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Solution

The fourth proportional to 3,831.17, 5,285.73 and 2,152.25 is: 2,969.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.17 : 5,285.73 = 2,152.25 : x
  2. Step 2: Convert to fraction form
    3,831.17/5,285.73 = 2,152.25/x
  3. Step 3: Cross multiply
    3,831.17x = 5,285.73 × 2,152.25
  4. Step 4: Simplify right side
    3,831.17x = 11,376,212.39
  5. Step 5: Solve for x
    x = 11,376,212.39/3,831.17
  6. Step 6: Final answer
    x = 2,969.38

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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.