Home / 3,216.95-4,439.22-1,890.58

Finding the Fourth Proportional to 3,216.95, 4,439.22 and 1,890.58

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Solution

The fourth proportional to 3,216.95, 4,439.22 and 1,890.58 is: 2,608.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.95 : 4,439.22 = 1,890.58 : x
  2. Step 2: Convert to fraction form
    3,216.95/4,439.22 = 1,890.58/x
  3. Step 3: Cross multiply
    3,216.95x = 4,439.22 × 1,890.58
  4. Step 4: Simplify right side
    3,216.95x = 8,392,700.55
  5. Step 5: Solve for x
    x = 8,392,700.55/3,216.95
  6. Step 6: Final answer
    x = 2,608.90

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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.