Home / 3,940.59-5,439.63-2,368.38

Finding the Fourth Proportional to 3,940.59, 5,439.63 and 2,368.38

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Solution

The fourth proportional to 3,940.59, 5,439.63 and 2,368.38 is: 3,269.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.59 : 5,439.63 = 2,368.38 : x
  2. Step 2: Convert to fraction form
    3,940.59/5,439.63 = 2,368.38/x
  3. Step 3: Cross multiply
    3,940.59x = 5,439.63 × 2,368.38
  4. Step 4: Simplify right side
    3,940.59x = 12,883,110.90
  5. Step 5: Solve for x
    x = 12,883,110.90/3,940.59
  6. Step 6: Final answer
    x = 3,269.34

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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.