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Finding the Fourth Proportional to 5,266.53, 7,899.80 and 2,959.65

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Solution

The fourth proportional to 5,266.53, 7,899.80 and 2,959.65 is: 4,439.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,266.53 : 7,899.80 = 2,959.65 : x
  2. Step 2: Convert to fraction form
    5,266.53/7,899.80 = 2,959.65/x
  3. Step 3: Cross multiply
    5,266.53x = 7,899.80 × 2,959.65
  4. Step 4: Simplify right side
    5,266.53x = 23,380,628.27
  5. Step 5: Solve for x
    x = 23,380,628.27/5,266.53
  6. Step 6: Final answer
    x = 4,439.48

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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.