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Finding the Fourth Proportional to 2,894.98, 3,994.94 and 1,618.82

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Solution

The fourth proportional to 2,894.98, 3,994.94 and 1,618.82 is: 2,233.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.98 : 3,994.94 = 1,618.82 : x
  2. Step 2: Convert to fraction form
    2,894.98/3,994.94 = 1,618.82/x
  3. Step 3: Cross multiply
    2,894.98x = 3,994.94 × 1,618.82
  4. Step 4: Simplify right side
    2,894.98x = 6,467,088.77
  5. Step 5: Solve for x
    x = 6,467,088.77/2,894.98
  6. Step 6: Final answer
    x = 2,233.90

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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.