Home / 2,764.88-3,818.77-1,831.76

Finding the Fourth Proportional to 2,764.88, 3,818.77 and 1,831.76

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Solution

The fourth proportional to 2,764.88, 3,818.77 and 1,831.76 is: 2,529.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.88 : 3,818.77 = 1,831.76 : x
  2. Step 2: Convert to fraction form
    2,764.88/3,818.77 = 1,831.76/x
  3. Step 3: Cross multiply
    2,764.88x = 3,818.77 × 1,831.76
  4. Step 4: Simplify right side
    2,764.88x = 6,995,046.46
  5. Step 5: Solve for x
    x = 6,995,046.46/2,764.88
  6. Step 6: Final answer
    x = 2,529.97

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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.