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Finding the Fourth Proportional to 2,003.36, 3,005.04 and 1,490.72

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Solution

The fourth proportional to 2,003.36, 3,005.04 and 1,490.72 is: 2,236.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,003.36 : 3,005.04 = 1,490.72 : x
  2. Step 2: Convert to fraction form
    2,003.36/3,005.04 = 1,490.72/x
  3. Step 3: Cross multiply
    2,003.36x = 3,005.04 × 1,490.72
  4. Step 4: Simplify right side
    2,003.36x = 4,479,673.23
  5. Step 5: Solve for x
    x = 4,479,673.23/2,003.36
  6. Step 6: Final answer
    x = 2,236.08

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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.