Home / 3,216.17-4,438.17-1,890.02

Finding the Fourth Proportional to 3,216.17, 4,438.17 and 1,890.02

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Solution

The fourth proportional to 3,216.17, 4,438.17 and 1,890.02 is: 2,608.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.17 : 4,438.17 = 1,890.02 : x
  2. Step 2: Convert to fraction form
    3,216.17/4,438.17 = 1,890.02/x
  3. Step 3: Cross multiply
    3,216.17x = 4,438.17 × 1,890.02
  4. Step 4: Simplify right side
    3,216.17x = 8,388,207.87
  5. Step 5: Solve for x
    x = 8,388,207.87/3,216.17
  6. Step 6: Final answer
    x = 2,608.14

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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.