Home / 4,721.14-7,079.28-1,947.30

Finding the Fourth Proportional to 4,721.14, 7,079.28 and 1,947.30

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Solution

The fourth proportional to 4,721.14, 7,079.28 and 1,947.30 is: 2,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.14 : 7,079.28 = 1,947.30 : x
  2. Step 2: Convert to fraction form
    4,721.14/7,079.28 = 1,947.30/x
  3. Step 3: Cross multiply
    4,721.14x = 7,079.28 × 1,947.30
  4. Step 4: Simplify right side
    4,721.14x = 13,785,481.94
  5. Step 5: Solve for x
    x = 13,785,481.94/4,721.14
  6. Step 6: Final answer
    x = 2,919.95

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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.