Home / 2,858.96-3,941.88-1,863.84

Finding the Fourth Proportional to 2,858.96, 3,941.88 and 1,863.84

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Solution

The fourth proportional to 2,858.96, 3,941.88 and 1,863.84 is: 2,569.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.96 : 3,941.88 = 1,863.84 : x
  2. Step 2: Convert to fraction form
    2,858.96/3,941.88 = 1,863.84/x
  3. Step 3: Cross multiply
    2,858.96x = 3,941.88 × 1,863.84
  4. Step 4: Simplify right side
    2,858.96x = 7,347,033.62
  5. Step 5: Solve for x
    x = 7,347,033.62/2,858.96
  6. Step 6: Final answer
    x = 2,569.83

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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.