Home / 2,188.80-3,283.20-2,176.65

Finding the Fourth Proportional to 2,188.80, 3,283.20 and 2,176.65

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Solution

The fourth proportional to 2,188.80, 3,283.20 and 2,176.65 is: 3,264.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.80 : 3,283.20 = 2,176.65 : x
  2. Step 2: Convert to fraction form
    2,188.80/3,283.20 = 2,176.65/x
  3. Step 3: Cross multiply
    2,188.80x = 3,283.20 × 2,176.65
  4. Step 4: Simplify right side
    2,188.80x = 7,146,377.28
  5. Step 5: Solve for x
    x = 7,146,377.28/2,188.80
  6. Step 6: Final answer
    x = 3,264.98

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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.