Home / 3,369.20-4,648.65-2,190.08

Finding the Fourth Proportional to 3,369.20, 4,648.65 and 2,190.08

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Solution

The fourth proportional to 3,369.20, 4,648.65 and 2,190.08 is: 3,021.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.20 : 4,648.65 = 2,190.08 : x
  2. Step 2: Convert to fraction form
    3,369.20/4,648.65 = 2,190.08/x
  3. Step 3: Cross multiply
    3,369.20x = 4,648.65 × 2,190.08
  4. Step 4: Simplify right side
    3,369.20x = 10,180,915.39
  5. Step 5: Solve for x
    x = 10,180,915.39/3,369.20
  6. Step 6: Final answer
    x = 3,021.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.