Home / 3,618.45-4,994.61-2,126.97

Finding the Fourth Proportional to 3,618.45, 4,994.61 and 2,126.97

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Solution

The fourth proportional to 3,618.45, 4,994.61 and 2,126.97 is: 2,935.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.45 : 4,994.61 = 2,126.97 : x
  2. Step 2: Convert to fraction form
    3,618.45/4,994.61 = 2,126.97/x
  3. Step 3: Cross multiply
    3,618.45x = 4,994.61 × 2,126.97
  4. Step 4: Simplify right side
    3,618.45x = 10,623,385.63
  5. Step 5: Solve for x
    x = 10,623,385.63/3,618.45
  6. Step 6: Final answer
    x = 2,935.89

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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.