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Finding the Fourth Proportional to 3,764.48, 5,646.00 and 1,299.31

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Solution

The fourth proportional to 3,764.48, 5,646.00 and 1,299.31 is: 1,948.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,764.48 : 5,646.00 = 1,299.31 : x
  2. Step 2: Convert to fraction form
    3,764.48/5,646.00 = 1,299.31/x
  3. Step 3: Cross multiply
    3,764.48x = 5,646.00 × 1,299.31
  4. Step 4: Simplify right side
    3,764.48x = 7,335,895.02
  5. Step 5: Solve for x
    x = 7,335,895.02/3,764.48
  6. Step 6: Final answer
    x = 1,948.72

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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.