Home / 3,942.32-5,439.31-2,263.64

Finding the Fourth Proportional to 3,942.32, 5,439.31 and 2,263.64

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Solution

The fourth proportional to 3,942.32, 5,439.31 and 2,263.64 is: 3,123.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.32 : 5,439.31 = 2,263.64 : x
  2. Step 2: Convert to fraction form
    3,942.32/5,439.31 = 2,263.64/x
  3. Step 3: Cross multiply
    3,942.32x = 5,439.31 × 2,263.64
  4. Step 4: Simplify right side
    3,942.32x = 12,312,606.83
  5. Step 5: Solve for x
    x = 12,312,606.83/3,942.32
  6. Step 6: Final answer
    x = 3,123.19

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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.