Home / 2,640.94-3,958.40-1,252.32

Finding the Fourth Proportional to 2,640.94, 3,958.40 and 1,252.32

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Solution

The fourth proportional to 2,640.94, 3,958.40 and 1,252.32 is: 1,877.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.94 : 3,958.40 = 1,252.32 : x
  2. Step 2: Convert to fraction form
    2,640.94/3,958.40 = 1,252.32/x
  3. Step 3: Cross multiply
    2,640.94x = 3,958.40 × 1,252.32
  4. Step 4: Simplify right side
    2,640.94x = 4,957,166.83
  5. Step 5: Solve for x
    x = 4,957,166.83/2,640.94
  6. Step 6: Final answer
    x = 1,877.05

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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.