Home / 2,947.96-4,442.21-2,439.40

Finding the Fourth Proportional to 2,947.96, 4,442.21 and 2,439.40

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Solution

The fourth proportional to 2,947.96, 4,442.21 and 2,439.40 is: 3,675.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.96 : 4,442.21 = 2,439.40 : x
  2. Step 2: Convert to fraction form
    2,947.96/4,442.21 = 2,439.40/x
  3. Step 3: Cross multiply
    2,947.96x = 4,442.21 × 2,439.40
  4. Step 4: Simplify right side
    2,947.96x = 10,836,327.07
  5. Step 5: Solve for x
    x = 10,836,327.07/2,947.96
  6. Step 6: Final answer
    x = 3,675.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.