Home / 2,831.98-3,908.06-1,572.97

Finding the Fourth Proportional to 2,831.98, 3,908.06 and 1,572.97

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Solution

The fourth proportional to 2,831.98, 3,908.06 and 1,572.97 is: 2,170.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.98 : 3,908.06 = 1,572.97 : x
  2. Step 2: Convert to fraction form
    2,831.98/3,908.06 = 1,572.97/x
  3. Step 3: Cross multiply
    2,831.98x = 3,908.06 × 1,572.97
  4. Step 4: Simplify right side
    2,831.98x = 6,147,265.58
  5. Step 5: Solve for x
    x = 6,147,265.58/2,831.98
  6. Step 6: Final answer
    x = 2,170.66

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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.