Home / 3,103.57-4,283.45-2,773.81

Finding the Fourth Proportional to 3,103.57, 4,283.45 and 2,773.81

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Solution

The fourth proportional to 3,103.57, 4,283.45 and 2,773.81 is: 3,828.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.57 : 4,283.45 = 2,773.81 : x
  2. Step 2: Convert to fraction form
    3,103.57/4,283.45 = 2,773.81/x
  3. Step 3: Cross multiply
    3,103.57x = 4,283.45 × 2,773.81
  4. Step 4: Simplify right side
    3,103.57x = 11,881,476.44
  5. Step 5: Solve for x
    x = 11,881,476.44/3,103.57
  6. Step 6: Final answer
    x = 3,828.33

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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.