Home / 3,407.42-5,111.46-1,327.58

Finding the Fourth Proportional to 3,407.42, 5,111.46 and 1,327.58

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Solution

The fourth proportional to 3,407.42, 5,111.46 and 1,327.58 is: 1,991.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.42 : 5,111.46 = 1,327.58 : x
  2. Step 2: Convert to fraction form
    3,407.42/5,111.46 = 1,327.58/x
  3. Step 3: Cross multiply
    3,407.42x = 5,111.46 × 1,327.58
  4. Step 4: Simplify right side
    3,407.42x = 6,785,872.07
  5. Step 5: Solve for x
    x = 6,785,872.07/3,407.42
  6. Step 6: Final answer
    x = 1,991.50

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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.