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Finding the Fourth Proportional to 5,678.56, 8,525.04 and 5,445.28

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Solution

The fourth proportional to 5,678.56, 8,525.04 and 5,445.28 is: 8,174.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.56 : 8,525.04 = 5,445.28 : x
  2. Step 2: Convert to fraction form
    5,678.56/8,525.04 = 5,445.28/x
  3. Step 3: Cross multiply
    5,678.56x = 8,525.04 × 5,445.28
  4. Step 4: Simplify right side
    5,678.56x = 46,421,229.81
  5. Step 5: Solve for x
    x = 46,421,229.81/5,678.56
  6. Step 6: Final answer
    x = 8,174.82

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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.