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Finding the Fourth Proportional to 5,815.55, 8,027.55 and 3,457.69

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Solution

The fourth proportional to 5,815.55, 8,027.55 and 3,457.69 is: 4,772.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.55 : 8,027.55 = 3,457.69 : x
  2. Step 2: Convert to fraction form
    5,815.55/8,027.55 = 3,457.69/x
  3. Step 3: Cross multiply
    5,815.55x = 8,027.55 × 3,457.69
  4. Step 4: Simplify right side
    5,815.55x = 27,756,759.29
  5. Step 5: Solve for x
    x = 27,756,759.29/5,815.55
  6. Step 6: Final answer
    x = 4,772.85

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.