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Finding the Fourth Proportional to 7,079.94, 10,619.88 and 1,885.82

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Solution

The fourth proportional to 7,079.94, 10,619.88 and 1,885.82 is: 2,828.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.94 : 10,619.88 = 1,885.82 : x
  2. Step 2: Convert to fraction form
    7,079.94/10,619.88 = 1,885.82/x
  3. Step 3: Cross multiply
    7,079.94x = 10,619.88 × 1,885.82
  4. Step 4: Simplify right side
    7,079.94x = 20,027,129.00
  5. Step 5: Solve for x
    x = 20,027,129.00/7,079.94
  6. Step 6: Final answer
    x = 2,828.71

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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.