Home / 3,618.50-4,994.76-2,126.86

Finding the Fourth Proportional to 3,618.50, 4,994.76 and 2,126.86

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Solution

The fourth proportional to 3,618.50, 4,994.76 and 2,126.86 is: 2,935.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.50 : 4,994.76 = 2,126.86 : x
  2. Step 2: Convert to fraction form
    3,618.50/4,994.76 = 2,126.86/x
  3. Step 3: Cross multiply
    3,618.50x = 4,994.76 × 2,126.86
  4. Step 4: Simplify right side
    3,618.50x = 10,623,119.65
  5. Step 5: Solve for x
    x = 10,623,119.65/3,618.50
  6. Step 6: Final answer
    x = 2,935.78

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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.