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Finding the Fourth Proportional to 5,808.84, 8,715.42 and 2,520.68

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Solution

The fourth proportional to 5,808.84, 8,715.42 and 2,520.68 is: 3,781.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,808.84 : 8,715.42 = 2,520.68 : x
  2. Step 2: Convert to fraction form
    5,808.84/8,715.42 = 2,520.68/x
  3. Step 3: Cross multiply
    5,808.84x = 8,715.42 × 2,520.68
  4. Step 4: Simplify right side
    5,808.84x = 21,968,784.89
  5. Step 5: Solve for x
    x = 21,968,784.89/5,808.84
  6. Step 6: Final answer
    x = 3,781.96

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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.