Home / 3,942.64-5,440.77-2,150.13

Finding the Fourth Proportional to 3,942.64, 5,440.77 and 2,150.13

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Solution

The fourth proportional to 3,942.64, 5,440.77 and 2,150.13 is: 2,967.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.64 : 5,440.77 = 2,150.13 : x
  2. Step 2: Convert to fraction form
    3,942.64/5,440.77 = 2,150.13/x
  3. Step 3: Cross multiply
    3,942.64x = 5,440.77 × 2,150.13
  4. Step 4: Simplify right side
    3,942.64x = 11,698,362.80
  5. Step 5: Solve for x
    x = 11,698,362.80/3,942.64
  6. Step 6: Final answer
    x = 2,967.14

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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.