Home / 2,639.63-3,951.25-1,947.08

Finding the Fourth Proportional to 2,639.63, 3,951.25 and 1,947.08

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Solution

The fourth proportional to 2,639.63, 3,951.25 and 1,947.08 is: 2,914.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.63 : 3,951.25 = 1,947.08 : x
  2. Step 2: Convert to fraction form
    2,639.63/3,951.25 = 1,947.08/x
  3. Step 3: Cross multiply
    2,639.63x = 3,951.25 × 1,947.08
  4. Step 4: Simplify right side
    2,639.63x = 7,693,404.86
  5. Step 5: Solve for x
    x = 7,693,404.86/2,639.63
  6. Step 6: Final answer
    x = 2,914.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.