Home / 3,439.94-4,747.38-1,948.02

Finding the Fourth Proportional to 3,439.94, 4,747.38 and 1,948.02

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Solution

The fourth proportional to 3,439.94, 4,747.38 and 1,948.02 is: 2,688.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.94 : 4,747.38 = 1,948.02 : x
  2. Step 2: Convert to fraction form
    3,439.94/4,747.38 = 1,948.02/x
  3. Step 3: Cross multiply
    3,439.94x = 4,747.38 × 1,948.02
  4. Step 4: Simplify right side
    3,439.94x = 9,247,991.19
  5. Step 5: Solve for x
    x = 9,247,991.19/3,439.94
  6. Step 6: Final answer
    x = 2,688.42

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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.