Home / 3,439.72-4,746.44-1,947.72

Finding the Fourth Proportional to 3,439.72, 4,746.44 and 1,947.72

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Solution

The fourth proportional to 3,439.72, 4,746.44 and 1,947.72 is: 2,687.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.72 : 4,746.44 = 1,947.72 : x
  2. Step 2: Convert to fraction form
    3,439.72/4,746.44 = 1,947.72/x
  3. Step 3: Cross multiply
    3,439.72x = 4,746.44 × 1,947.72
  4. Step 4: Simplify right side
    3,439.72x = 9,244,736.12
  5. Step 5: Solve for x
    x = 9,244,736.12/3,439.72
  6. Step 6: Final answer
    x = 2,687.64

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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.