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Finding the Fourth Proportional to 2,651.93, 3,975.39 and 1,264.53

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Solution

The fourth proportional to 2,651.93, 3,975.39 and 1,264.53 is: 1,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.93 : 3,975.39 = 1,264.53 : x
  2. Step 2: Convert to fraction form
    2,651.93/3,975.39 = 1,264.53/x
  3. Step 3: Cross multiply
    2,651.93x = 3,975.39 × 1,264.53
  4. Step 4: Simplify right side
    2,651.93x = 5,026,999.92
  5. Step 5: Solve for x
    x = 5,026,999.92/2,651.93
  6. Step 6: Final answer
    x = 1,895.60

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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.