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Finding the Fourth Proportional to 1,366.65, 1,884.92 and 894.02

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Solution

The fourth proportional to 1,366.65, 1,884.92 and 894.02 is: 1,233.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,366.65 : 1,884.92 = 894.02 : x
  2. Step 2: Convert to fraction form
    1,366.65/1,884.92 = 894.02/x
  3. Step 3: Cross multiply
    1,366.65x = 1,884.92 × 894.02
  4. Step 4: Simplify right side
    1,366.65x = 1,685,142.28
  5. Step 5: Solve for x
    x = 1,685,142.28/1,366.65
  6. Step 6: Final answer
    x = 1,233.05

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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.