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Finding the Fourth Proportional to 2,003.09, 3,003.75 and 964.13

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Solution

The fourth proportional to 2,003.09, 3,003.75 and 964.13 is: 1,445.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,003.09 : 3,003.75 = 964.13 : x
  2. Step 2: Convert to fraction form
    2,003.09/3,003.75 = 964.13/x
  3. Step 3: Cross multiply
    2,003.09x = 3,003.75 × 964.13
  4. Step 4: Simplify right side
    2,003.09x = 2,895,990.47
  5. Step 5: Solve for x
    x = 2,895,990.47/2,003.09
  6. Step 6: Final answer
    x = 1,445.77

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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.