Home / 3,100.22-4,278.35-1,683.93

Finding the Fourth Proportional to 3,100.22, 4,278.35 and 1,683.93

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Solution

The fourth proportional to 3,100.22, 4,278.35 and 1,683.93 is: 2,323.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.22 : 4,278.35 = 1,683.93 : x
  2. Step 2: Convert to fraction form
    3,100.22/4,278.35 = 1,683.93/x
  3. Step 3: Cross multiply
    3,100.22x = 4,278.35 × 1,683.93
  4. Step 4: Simplify right side
    3,100.22x = 7,204,439.67
  5. Step 5: Solve for x
    x = 7,204,439.67/3,100.22
  6. Step 6: Final answer
    x = 2,323.85

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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.