Home / 3,212.64-4,818.96-1,912.59

Finding the Fourth Proportional to 3,212.64, 4,818.96 and 1,912.59

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Solution

The fourth proportional to 3,212.64, 4,818.96 and 1,912.59 is: 2,868.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.64 : 4,818.96 = 1,912.59 : x
  2. Step 2: Convert to fraction form
    3,212.64/4,818.96 = 1,912.59/x
  3. Step 3: Cross multiply
    3,212.64x = 4,818.96 × 1,912.59
  4. Step 4: Simplify right side
    3,212.64x = 9,216,694.71
  5. Step 5: Solve for x
    x = 9,216,694.71/3,212.64
  6. Step 6: Final answer
    x = 2,868.89

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1.5x scale

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.