Home / 4,785.80-7,181.15-1,976.72

Finding the Fourth Proportional to 4,785.80, 7,181.15 and 1,976.72

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Solution

The fourth proportional to 4,785.80, 7,181.15 and 1,976.72 is: 2,966.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.80 : 7,181.15 = 1,976.72 : x
  2. Step 2: Convert to fraction form
    4,785.80/7,181.15 = 1,976.72/x
  3. Step 3: Cross multiply
    4,785.80x = 7,181.15 × 1,976.72
  4. Step 4: Simplify right side
    4,785.80x = 14,195,077.04
  5. Step 5: Solve for x
    x = 14,195,077.04/4,785.80
  6. Step 6: Final answer
    x = 2,966.09

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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.