Home / 2,220.18-3,329.70-659.82

Finding the Fourth Proportional to 2,220.18, 3,329.70 and 659.82

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Solution

The fourth proportional to 2,220.18, 3,329.70 and 659.82 is: 989.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.18 : 3,329.70 = 659.82 : x
  2. Step 2: Convert to fraction form
    2,220.18/3,329.70 = 659.82/x
  3. Step 3: Cross multiply
    2,220.18x = 3,329.70 × 659.82
  4. Step 4: Simplify right side
    2,220.18x = 2,196,986.01
  5. Step 5: Solve for x
    x = 2,196,986.01/2,220.18
  6. Step 6: Final answer
    x = 989.55

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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.