Home / 3,251.27-4,485.38-2,130.77

Finding the Fourth Proportional to 3,251.27, 4,485.38 and 2,130.77

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Solution

The fourth proportional to 3,251.27, 4,485.38 and 2,130.77 is: 2,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.27 : 4,485.38 = 2,130.77 : x
  2. Step 2: Convert to fraction form
    3,251.27/4,485.38 = 2,130.77/x
  3. Step 3: Cross multiply
    3,251.27x = 4,485.38 × 2,130.77
  4. Step 4: Simplify right side
    3,251.27x = 9,557,313.70
  5. Step 5: Solve for x
    x = 9,557,313.70/3,251.27
  6. Step 6: Final answer
    x = 2,939.56

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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.