Home / 6,605.20-9,909.15-2,223.10

Finding the Fourth Proportional to 6,605.20, 9,909.15 and 2,223.10

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Solution

The fourth proportional to 6,605.20, 9,909.15 and 2,223.10 is: 3,335.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.20 : 9,909.15 = 2,223.10 : x
  2. Step 2: Convert to fraction form
    6,605.20/9,909.15 = 2,223.10/x
  3. Step 3: Cross multiply
    6,605.20x = 9,909.15 × 2,223.10
  4. Step 4: Simplify right side
    6,605.20x = 22,029,031.37
  5. Step 5: Solve for x
    x = 22,029,031.37/6,605.20
  6. Step 6: Final answer
    x = 3,335.10

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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.