Home / 2,776.74-3,831.49-2,104.92

Finding the Fourth Proportional to 2,776.74, 3,831.49 and 2,104.92

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Solution

The fourth proportional to 2,776.74, 3,831.49 and 2,104.92 is: 2,904.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.74 : 3,831.49 = 2,104.92 : x
  2. Step 2: Convert to fraction form
    2,776.74/3,831.49 = 2,104.92/x
  3. Step 3: Cross multiply
    2,776.74x = 3,831.49 × 2,104.92
  4. Step 4: Simplify right side
    2,776.74x = 8,064,979.93
  5. Step 5: Solve for x
    x = 8,064,979.93/2,776.74
  6. Step 6: Final answer
    x = 2,904.48

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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.