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Finding the Fourth Proportional to 1,619.16, 2,233.92 and 956.04

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Solution

The fourth proportional to 1,619.16, 2,233.92 and 956.04 is: 1,319.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.16 : 2,233.92 = 956.04 : x
  2. Step 2: Convert to fraction form
    1,619.16/2,233.92 = 956.04/x
  3. Step 3: Cross multiply
    1,619.16x = 2,233.92 × 956.04
  4. Step 4: Simplify right side
    1,619.16x = 2,135,716.88
  5. Step 5: Solve for x
    x = 2,135,716.88/1,619.16
  6. Step 6: Final answer
    x = 1,319.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.