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Finding the Fourth Proportional to 2,894.15, 4,341.47 and 814.17

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Solution

The fourth proportional to 2,894.15, 4,341.47 and 814.17 is: 1,221.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.15 : 4,341.47 = 814.17 : x
  2. Step 2: Convert to fraction form
    2,894.15/4,341.47 = 814.17/x
  3. Step 3: Cross multiply
    2,894.15x = 4,341.47 × 814.17
  4. Step 4: Simplify right side
    2,894.15x = 3,534,694.63
  5. Step 5: Solve for x
    x = 3,534,694.63/2,894.15
  6. Step 6: Final answer
    x = 1,221.32

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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.