Home / 5,206.15-7,180.95-3,188.62

Finding the Fourth Proportional to 5,206.15, 7,180.95 and 3,188.62

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Solution

The fourth proportional to 5,206.15, 7,180.95 and 3,188.62 is: 4,398.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,206.15 : 7,180.95 = 3,188.62 : x
  2. Step 2: Convert to fraction form
    5,206.15/7,180.95 = 3,188.62/x
  3. Step 3: Cross multiply
    5,206.15x = 7,180.95 × 3,188.62
  4. Step 4: Simplify right side
    5,206.15x = 22,897,320.79
  5. Step 5: Solve for x
    x = 22,897,320.79/5,206.15
  6. Step 6: Final answer
    x = 4,398.13

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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.