Home / 3,211.90-4,432.36-1,795.61

Finding the Fourth Proportional to 3,211.90, 4,432.36 and 1,795.61

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Solution

The fourth proportional to 3,211.90, 4,432.36 and 1,795.61 is: 2,477.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.90 : 4,432.36 = 1,795.61 : x
  2. Step 2: Convert to fraction form
    3,211.90/4,432.36 = 1,795.61/x
  3. Step 3: Cross multiply
    3,211.90x = 4,432.36 × 1,795.61
  4. Step 4: Simplify right side
    3,211.90x = 7,958,796.53
  5. Step 5: Solve for x
    x = 7,958,796.53/3,211.90
  6. Step 6: Final answer
    x = 2,477.91

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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.