Home / 3,241.85-4,857.35-3,120.35

Finding the Fourth Proportional to 3,241.85, 4,857.35 and 3,120.35

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Solution

The fourth proportional to 3,241.85, 4,857.35 and 3,120.35 is: 4,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,241.85 : 4,857.35 = 3,120.35 : x
  2. Step 2: Convert to fraction form
    3,241.85/4,857.35 = 3,120.35/x
  3. Step 3: Cross multiply
    3,241.85x = 4,857.35 × 3,120.35
  4. Step 4: Simplify right side
    3,241.85x = 15,156,592.18
  5. Step 5: Solve for x
    x = 15,156,592.18/3,241.85
  6. Step 6: Final answer
    x = 4,675.30

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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.