Home / 3,089.10-4,627.16-2,220.78

Finding the Fourth Proportional to 3,089.10, 4,627.16 and 2,220.78

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Solution

The fourth proportional to 3,089.10, 4,627.16 and 2,220.78 is: 3,326.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.10 : 4,627.16 = 2,220.78 : x
  2. Step 2: Convert to fraction form
    3,089.10/4,627.16 = 2,220.78/x
  3. Step 3: Cross multiply
    3,089.10x = 4,627.16 × 2,220.78
  4. Step 4: Simplify right side
    3,089.10x = 10,275,904.38
  5. Step 5: Solve for x
    x = 10,275,904.38/3,089.10
  6. Step 6: Final answer
    x = 3,326.50

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Half scale
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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.