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Finding the Fourth Proportional to 3,340.48, 5,010.48 and 1,491.76

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Solution

The fourth proportional to 3,340.48, 5,010.48 and 1,491.76 is: 2,237.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.48 : 5,010.48 = 1,491.76 : x
  2. Step 2: Convert to fraction form
    3,340.48/5,010.48 = 1,491.76/x
  3. Step 3: Cross multiply
    3,340.48x = 5,010.48 × 1,491.76
  4. Step 4: Simplify right side
    3,340.48x = 7,474,433.64
  5. Step 5: Solve for x
    x = 7,474,433.64/3,340.48
  6. Step 6: Final answer
    x = 2,237.53

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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.