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Finding the Fourth Proportional to 2,005.32, 3,008.04 and 908.40

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Solution

The fourth proportional to 2,005.32, 3,008.04 and 908.40 is: 1,362.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.32 : 3,008.04 = 908.40 : x
  2. Step 2: Convert to fraction form
    2,005.32/3,008.04 = 908.40/x
  3. Step 3: Cross multiply
    2,005.32x = 3,008.04 × 908.40
  4. Step 4: Simplify right side
    2,005.32x = 2,732,503.54
  5. Step 5: Solve for x
    x = 2,732,503.54/2,005.32
  6. Step 6: Final answer
    x = 1,362.63

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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.