Home / 3,529.06-4,868.58-2,131

Finding the Fourth Proportional to 3,529.06, 4,868.58 and 2,131

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Solution

The fourth proportional to 3,529.06, 4,868.58 and 2,131 is: 2,939.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.06 : 4,868.58 = 2,131 : x
  2. Step 2: Convert to fraction form
    3,529.06/4,868.58 = 2,131/x
  3. Step 3: Cross multiply
    3,529.06x = 4,868.58 × 2,131
  4. Step 4: Simplify right side
    3,529.06x = 10,374,943.98
  5. Step 5: Solve for x
    x = 10,374,943.98/3,529.06
  6. Step 6: Final answer
    x = 2,939.86

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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.