Home / 2,783.04-3,831.84-2,260.80

Finding the Fourth Proportional to 2,783.04, 3,831.84 and 2,260.80

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Solution

The fourth proportional to 2,783.04, 3,831.84 and 2,260.80 is: 3,112.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.04 : 3,831.84 = 2,260.80 : x
  2. Step 2: Convert to fraction form
    2,783.04/3,831.84 = 2,260.80/x
  3. Step 3: Cross multiply
    2,783.04x = 3,831.84 × 2,260.80
  4. Step 4: Simplify right side
    2,783.04x = 8,663,023.87
  5. Step 5: Solve for x
    x = 8,663,023.87/2,783.04
  6. Step 6: Final answer
    x = 3,112.79

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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.