Home / 3,261.20-4,500.97-3,121.07

Finding the Fourth Proportional to 3,261.20, 4,500.97 and 3,121.07

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Solution

The fourth proportional to 3,261.20, 4,500.97 and 3,121.07 is: 4,307.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.20 : 4,500.97 = 3,121.07 : x
  2. Step 2: Convert to fraction form
    3,261.20/4,500.97 = 3,121.07/x
  3. Step 3: Cross multiply
    3,261.20x = 4,500.97 × 3,121.07
  4. Step 4: Simplify right side
    3,261.20x = 14,047,812.13
  5. Step 5: Solve for x
    x = 14,047,812.13/3,261.20
  6. Step 6: Final answer
    x = 4,307.57

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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.