Home / 3,940.64-5,436.02-2,346.18

Finding the Fourth Proportional to 3,940.64, 5,436.02 and 2,346.18

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Solution

The fourth proportional to 3,940.64, 5,436.02 and 2,346.18 is: 3,236.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.64 : 5,436.02 = 2,346.18 : x
  2. Step 2: Convert to fraction form
    3,940.64/5,436.02 = 2,346.18/x
  3. Step 3: Cross multiply
    3,940.64x = 5,436.02 × 2,346.18
  4. Step 4: Simplify right side
    3,940.64x = 12,753,881.40
  5. Step 5: Solve for x
    x = 12,753,881.40/3,940.64
  6. Step 6: Final answer
    x = 3,236.50

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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.