Home / 3,221.34-4,445.45-1,894.83

Finding the Fourth Proportional to 3,221.34, 4,445.45 and 1,894.83

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Solution

The fourth proportional to 3,221.34, 4,445.45 and 1,894.83 is: 2,614.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.34 : 4,445.45 = 1,894.83 : x
  2. Step 2: Convert to fraction form
    3,221.34/4,445.45 = 1,894.83/x
  3. Step 3: Cross multiply
    3,221.34x = 4,445.45 × 1,894.83
  4. Step 4: Simplify right side
    3,221.34x = 8,423,372.02
  5. Step 5: Solve for x
    x = 8,423,372.02/3,221.34
  6. Step 6: Final answer
    x = 2,614.87

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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.