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Finding the Fourth Proportional to 3,240.11, 4,859.76 and 900.29

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Solution

The fourth proportional to 3,240.11, 4,859.76 and 900.29 is: 1,350.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.11 : 4,859.76 = 900.29 : x
  2. Step 2: Convert to fraction form
    3,240.11/4,859.76 = 900.29/x
  3. Step 3: Cross multiply
    3,240.11x = 4,859.76 × 900.29
  4. Step 4: Simplify right side
    3,240.11x = 4,375,193.33
  5. Step 5: Solve for x
    x = 4,375,193.33/3,240.11
  6. Step 6: Final answer
    x = 1,350.32

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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.