Home / 3,135.96-4,327.26-1,809.72

Finding the Fourth Proportional to 3,135.96, 4,327.26 and 1,809.72

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Solution

The fourth proportional to 3,135.96, 4,327.26 and 1,809.72 is: 2,497.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.96 : 4,327.26 = 1,809.72 : x
  2. Step 2: Convert to fraction form
    3,135.96/4,327.26 = 1,809.72/x
  3. Step 3: Cross multiply
    3,135.96x = 4,327.26 × 1,809.72
  4. Step 4: Simplify right side
    3,135.96x = 7,831,128.97
  5. Step 5: Solve for x
    x = 7,831,128.97/3,135.96
  6. Step 6: Final answer
    x = 2,497.20

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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.