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Finding the Fourth Proportional to 4,820.87, 7,230.30 and 1,357.31

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Solution

The fourth proportional to 4,820.87, 7,230.30 and 1,357.31 is: 2,035.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820.87 : 7,230.30 = 1,357.31 : x
  2. Step 2: Convert to fraction form
    4,820.87/7,230.30 = 1,357.31/x
  3. Step 3: Cross multiply
    4,820.87x = 7,230.30 × 1,357.31
  4. Step 4: Simplify right side
    4,820.87x = 9,813,771.48
  5. Step 5: Solve for x
    x = 9,813,771.48/4,820.87
  6. Step 6: Final answer
    x = 2,035.68

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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.