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Finding the Fourth Proportional to 5,362.48, 7,400.31 and 3,124.30

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Solution

The fourth proportional to 5,362.48, 7,400.31 and 3,124.30 is: 4,311.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,362.48 : 7,400.31 = 3,124.30 : x
  2. Step 2: Convert to fraction form
    5,362.48/7,400.31 = 3,124.30/x
  3. Step 3: Cross multiply
    5,362.48x = 7,400.31 × 3,124.30
  4. Step 4: Simplify right side
    5,362.48x = 23,120,772.91
  5. Step 5: Solve for x
    x = 23,120,772.91/5,362.48
  6. Step 6: Final answer
    x = 4,311.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.