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Finding the Fourth Proportional to 5,564.72, 8,347.12 and 2,278.15

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Solution

The fourth proportional to 5,564.72, 8,347.12 and 2,278.15 is: 3,417.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,564.72 : 8,347.12 = 2,278.15 : x
  2. Step 2: Convert to fraction form
    5,564.72/8,347.12 = 2,278.15/x
  3. Step 3: Cross multiply
    5,564.72x = 8,347.12 × 2,278.15
  4. Step 4: Simplify right side
    5,564.72x = 19,015,964.86
  5. Step 5: Solve for x
    x = 19,015,964.86/5,564.72
  6. Step 6: Final answer
    x = 3,417.24

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.