Home / 4,785.92-7,181.36-1,976.84

Finding the Fourth Proportional to 4,785.92, 7,181.36 and 1,976.84

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Solution

The fourth proportional to 4,785.92, 7,181.36 and 1,976.84 is: 2,966.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.92 : 7,181.36 = 1,976.84 : x
  2. Step 2: Convert to fraction form
    4,785.92/7,181.36 = 1,976.84/x
  3. Step 3: Cross multiply
    4,785.92x = 7,181.36 × 1,976.84
  4. Step 4: Simplify right side
    4,785.92x = 14,196,399.70
  5. Step 5: Solve for x
    x = 14,196,399.70/4,785.92
  6. Step 6: Final answer
    x = 2,966.28

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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.