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Finding the Fourth Proportional to 2,894.36, 4,341.94 and 945.92

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Solution

The fourth proportional to 2,894.36, 4,341.94 and 945.92 is: 1,419.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.36 : 4,341.94 = 945.92 : x
  2. Step 2: Convert to fraction form
    2,894.36/4,341.94 = 945.92/x
  3. Step 3: Cross multiply
    2,894.36x = 4,341.94 × 945.92
  4. Step 4: Simplify right side
    2,894.36x = 4,107,127.88
  5. Step 5: Solve for x
    x = 4,107,127.88/2,894.36
  6. Step 6: Final answer
    x = 1,419.01

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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.