Home / 3,940.34-5,439.22-2,368.13

Finding the Fourth Proportional to 3,940.34, 5,439.22 and 2,368.13

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Solution

The fourth proportional to 3,940.34, 5,439.22 and 2,368.13 is: 3,268.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.34 : 5,439.22 = 2,368.13 : x
  2. Step 2: Convert to fraction form
    3,940.34/5,439.22 = 2,368.13/x
  3. Step 3: Cross multiply
    3,940.34x = 5,439.22 × 2,368.13
  4. Step 4: Simplify right side
    3,940.34x = 12,880,746.94
  5. Step 5: Solve for x
    x = 12,880,746.94/3,940.34
  6. Step 6: Final answer
    x = 3,268.95

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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.