Home / 3,278.81-4,524.71-1,786.74

Finding the Fourth Proportional to 3,278.81, 4,524.71 and 1,786.74

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Solution

The fourth proportional to 3,278.81, 4,524.71 and 1,786.74 is: 2,465.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.81 : 4,524.71 = 1,786.74 : x
  2. Step 2: Convert to fraction form
    3,278.81/4,524.71 = 1,786.74/x
  3. Step 3: Cross multiply
    3,278.81x = 4,524.71 × 1,786.74
  4. Step 4: Simplify right side
    3,278.81x = 8,084,471.41
  5. Step 5: Solve for x
    x = 8,084,471.41/3,278.81
  6. Step 6: Final answer
    x = 2,465.67

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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.