Home / 3,204.72-4,423.70-2,420.64

Finding the Fourth Proportional to 3,204.72, 4,423.70 and 2,420.64

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Solution

The fourth proportional to 3,204.72, 4,423.70 and 2,420.64 is: 3,341.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,204.72 : 4,423.70 = 2,420.64 : x
  2. Step 2: Convert to fraction form
    3,204.72/4,423.70 = 2,420.64/x
  3. Step 3: Cross multiply
    3,204.72x = 4,423.70 × 2,420.64
  4. Step 4: Simplify right side
    3,204.72x = 10,708,185.17
  5. Step 5: Solve for x
    x = 10,708,185.17/3,204.72
  6. Step 6: Final answer
    x = 3,341.38

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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.