Home / 4,435.80-6,660.90-3,211.80

Finding the Fourth Proportional to 4,435.80, 6,660.90 and 3,211.80

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Solution

The fourth proportional to 4,435.80, 6,660.90 and 3,211.80 is: 4,822.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,435.80 : 6,660.90 = 3,211.80 : x
  2. Step 2: Convert to fraction form
    4,435.80/6,660.90 = 3,211.80/x
  3. Step 3: Cross multiply
    4,435.80x = 6,660.90 × 3,211.80
  4. Step 4: Simplify right side
    4,435.80x = 21,393,478.62
  5. Step 5: Solve for x
    x = 21,393,478.62/4,435.80
  6. Step 6: Final answer
    x = 4,822.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.