Home / 3,439.77-4,746.87-1,947.54

Finding the Fourth Proportional to 3,439.77, 4,746.87 and 1,947.54

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Solution

The fourth proportional to 3,439.77, 4,746.87 and 1,947.54 is: 2,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.77 : 4,746.87 = 1,947.54 : x
  2. Step 2: Convert to fraction form
    3,439.77/4,746.87 = 1,947.54/x
  3. Step 3: Cross multiply
    3,439.77x = 4,746.87 × 1,947.54
  4. Step 4: Simplify right side
    3,439.77x = 9,244,719.20
  5. Step 5: Solve for x
    x = 9,244,719.20/3,439.77
  6. Step 6: Final answer
    x = 2,687.60

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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.