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Finding the Fourth Proportional to 5,765.42, 8,648.11 and 1,817.01

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Solution

The fourth proportional to 5,765.42, 8,648.11 and 1,817.01 is: 2,725.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,765.42 : 8,648.11 = 1,817.01 : x
  2. Step 2: Convert to fraction form
    5,765.42/8,648.11 = 1,817.01/x
  3. Step 3: Cross multiply
    5,765.42x = 8,648.11 × 1,817.01
  4. Step 4: Simplify right side
    5,765.42x = 15,713,697.81
  5. Step 5: Solve for x
    x = 15,713,697.81/5,765.42
  6. Step 6: Final answer
    x = 2,725.51

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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.