Home / 4,785.96-7,179.35-1,323.20

Finding the Fourth Proportional to 4,785.96, 7,179.35 and 1,323.20

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Solution

The fourth proportional to 4,785.96, 7,179.35 and 1,323.20 is: 1,984.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.96 : 7,179.35 = 1,323.20 : x
  2. Step 2: Convert to fraction form
    4,785.96/7,179.35 = 1,323.20/x
  3. Step 3: Cross multiply
    4,785.96x = 7,179.35 × 1,323.20
  4. Step 4: Simplify right side
    4,785.96x = 9,499,715.92
  5. Step 5: Solve for x
    x = 9,499,715.92/4,785.96
  6. Step 6: Final answer
    x = 1,984.91

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Double scale
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Similar ratio
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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.