Home / 5,209.35-7,186.38-3,219.18

Finding the Fourth Proportional to 5,209.35, 7,186.38 and 3,219.18

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Solution

The fourth proportional to 5,209.35, 7,186.38 and 3,219.18 is: 4,440.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.35 : 7,186.38 = 3,219.18 : x
  2. Step 2: Convert to fraction form
    5,209.35/7,186.38 = 3,219.18/x
  3. Step 3: Cross multiply
    5,209.35x = 7,186.38 × 3,219.18
  4. Step 4: Simplify right side
    5,209.35x = 23,134,250.77
  5. Step 5: Solve for x
    x = 23,134,250.77/5,209.35
  6. Step 6: Final answer
    x = 4,440.91

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Double scale
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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.