Home / 2,221.09-3,328.45-1,631.46

Finding the Fourth Proportional to 2,221.09, 3,328.45 and 1,631.46

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Solution

The fourth proportional to 2,221.09, 3,328.45 and 1,631.46 is: 2,444.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.09 : 3,328.45 = 1,631.46 : x
  2. Step 2: Convert to fraction form
    2,221.09/3,328.45 = 1,631.46/x
  3. Step 3: Cross multiply
    2,221.09x = 3,328.45 × 1,631.46
  4. Step 4: Simplify right side
    2,221.09x = 5,430,227.31
  5. Step 5: Solve for x
    x = 5,430,227.31/2,221.09
  6. Step 6: Final answer
    x = 2,444.85

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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.