Home / 2,981.64-4,470.24-1,811.91

Finding the Fourth Proportional to 2,981.64, 4,470.24 and 1,811.91

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Solution

The fourth proportional to 2,981.64, 4,470.24 and 1,811.91 is: 2,716.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.64 : 4,470.24 = 1,811.91 : x
  2. Step 2: Convert to fraction form
    2,981.64/4,470.24 = 1,811.91/x
  3. Step 3: Cross multiply
    2,981.64x = 4,470.24 × 1,811.91
  4. Step 4: Simplify right side
    2,981.64x = 8,099,672.56
  5. Step 5: Solve for x
    x = 8,099,672.56/2,981.64
  6. Step 6: Final answer
    x = 2,716.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.