Home / 5,221.70-7,209.51-3,650.30

Finding the Fourth Proportional to 5,221.70, 7,209.51 and 3,650.30

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Solution

The fourth proportional to 5,221.70, 7,209.51 and 3,650.30 is: 5,039.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.70 : 7,209.51 = 3,650.30 : x
  2. Step 2: Convert to fraction form
    5,221.70/7,209.51 = 3,650.30/x
  3. Step 3: Cross multiply
    5,221.70x = 7,209.51 × 3,650.30
  4. Step 4: Simplify right side
    5,221.70x = 26,316,874.35
  5. Step 5: Solve for x
    x = 26,316,874.35/5,221.70
  6. Step 6: Final answer
    x = 5,039.91

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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.