Home / 3,216.06-4,438.05-1,818.78

Finding the Fourth Proportional to 3,216.06, 4,438.05 and 1,818.78

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Solution

The fourth proportional to 3,216.06, 4,438.05 and 1,818.78 is: 2,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.06 : 4,438.05 = 1,818.78 : x
  2. Step 2: Convert to fraction form
    3,216.06/4,438.05 = 1,818.78/x
  3. Step 3: Cross multiply
    3,216.06x = 4,438.05 × 1,818.78
  4. Step 4: Simplify right side
    3,216.06x = 8,071,836.58
  5. Step 5: Solve for x
    x = 8,071,836.58/3,216.06
  6. Step 6: Final answer
    x = 2,509.85

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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.