Home / 3,715.46-5,126.06-2,120.96

Finding the Fourth Proportional to 3,715.46, 5,126.06 and 2,120.96

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Solution

The fourth proportional to 3,715.46, 5,126.06 and 2,120.96 is: 2,926.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.46 : 5,126.06 = 2,120.96 : x
  2. Step 2: Convert to fraction form
    3,715.46/5,126.06 = 2,120.96/x
  3. Step 3: Cross multiply
    3,715.46x = 5,126.06 × 2,120.96
  4. Step 4: Simplify right side
    3,715.46x = 10,872,131.98
  5. Step 5: Solve for x
    x = 10,872,131.98/3,715.46
  6. Step 6: Final answer
    x = 2,926.19

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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.