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Finding the Fourth Proportional to 5,008.64, 7,518.42 and 2,817.99

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Solution

The fourth proportional to 5,008.64, 7,518.42 and 2,817.99 is: 4,230.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,008.64 : 7,518.42 = 2,817.99 : x
  2. Step 2: Convert to fraction form
    5,008.64/7,518.42 = 2,817.99/x
  3. Step 3: Cross multiply
    5,008.64x = 7,518.42 × 2,817.99
  4. Step 4: Simplify right side
    5,008.64x = 21,186,832.38
  5. Step 5: Solve for x
    x = 21,186,832.38/5,008.64
  6. Step 6: Final answer
    x = 4,230.06

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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.