Home / 3,130.66-4,696.11-2,141.12

Finding the Fourth Proportional to 3,130.66, 4,696.11 and 2,141.12

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Solution

The fourth proportional to 3,130.66, 4,696.11 and 2,141.12 is: 3,211.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.66 : 4,696.11 = 2,141.12 : x
  2. Step 2: Convert to fraction form
    3,130.66/4,696.11 = 2,141.12/x
  3. Step 3: Cross multiply
    3,130.66x = 4,696.11 × 2,141.12
  4. Step 4: Simplify right side
    3,130.66x = 10,054,921.14
  5. Step 5: Solve for x
    x = 10,054,921.14/3,130.66
  6. Step 6: Final answer
    x = 3,211.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.