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Finding the Fourth Proportional to 2,643.48, 3,647.85 and 1,464.48

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Solution

The fourth proportional to 2,643.48, 3,647.85 and 1,464.48 is: 2,020.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.48 : 3,647.85 = 1,464.48 : x
  2. Step 2: Convert to fraction form
    2,643.48/3,647.85 = 1,464.48/x
  3. Step 3: Cross multiply
    2,643.48x = 3,647.85 × 1,464.48
  4. Step 4: Simplify right side
    2,643.48x = 5,342,203.37
  5. Step 5: Solve for x
    x = 5,342,203.37/2,643.48
  6. Step 6: Final answer
    x = 2,020.90

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Why These Related Problems?

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