Home / 3,138.93-4,693.41-2,863.53

Finding the Fourth Proportional to 3,138.93, 4,693.41 and 2,863.53

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Solution

The fourth proportional to 3,138.93, 4,693.41 and 2,863.53 is: 4,281.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.93 : 4,693.41 = 2,863.53 : x
  2. Step 2: Convert to fraction form
    3,138.93/4,693.41 = 2,863.53/x
  3. Step 3: Cross multiply
    3,138.93x = 4,693.41 × 2,863.53
  4. Step 4: Simplify right side
    3,138.93x = 13,439,720.34
  5. Step 5: Solve for x
    x = 13,439,720.34/3,138.93
  6. Step 6: Final answer
    x = 4,281.62

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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.