Home / 3,917.68-5,406.44-2,426.32

Finding the Fourth Proportional to 3,917.68, 5,406.44 and 2,426.32

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Solution

The fourth proportional to 3,917.68, 5,406.44 and 2,426.32 is: 3,348.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.68 : 5,406.44 = 2,426.32 : x
  2. Step 2: Convert to fraction form
    3,917.68/5,406.44 = 2,426.32/x
  3. Step 3: Cross multiply
    3,917.68x = 5,406.44 × 2,426.32
  4. Step 4: Simplify right side
    3,917.68x = 13,117,753.50
  5. Step 5: Solve for x
    x = 13,117,753.50/3,917.68
  6. Step 6: Final answer
    x = 3,348.35

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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.