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Finding the Fourth Proportional to 3,208.38, 4,812.74 and 900.06

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Solution

The fourth proportional to 3,208.38, 4,812.74 and 900.06 is: 1,350.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.38 : 4,812.74 = 900.06 : x
  2. Step 2: Convert to fraction form
    3,208.38/4,812.74 = 900.06/x
  3. Step 3: Cross multiply
    3,208.38x = 4,812.74 × 900.06
  4. Step 4: Simplify right side
    3,208.38x = 4,331,754.76
  5. Step 5: Solve for x
    x = 4,331,754.76/3,208.38
  6. Step 6: Final answer
    x = 1,350.14

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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.