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Finding the Fourth Proportional to 5,670.72, 8,506.56 and 2,208

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Solution

The fourth proportional to 5,670.72, 8,506.56 and 2,208 is: 3,312.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,670.72 : 8,506.56 = 2,208 : x
  2. Step 2: Convert to fraction form
    5,670.72/8,506.56 = 2,208/x
  3. Step 3: Cross multiply
    5,670.72x = 8,506.56 × 2,208
  4. Step 4: Simplify right side
    5,670.72x = 18,782,484.48
  5. Step 5: Solve for x
    x = 18,782,484.48/5,670.72
  6. Step 6: Final answer
    x = 3,312.19

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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.