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Finding the Fourth Proportional to 2,560.08, 3,840.04 and 736.08

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Solution

The fourth proportional to 2,560.08, 3,840.04 and 736.08 is: 1,104.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560.08 : 3,840.04 = 736.08 : x
  2. Step 2: Convert to fraction form
    2,560.08/3,840.04 = 736.08/x
  3. Step 3: Cross multiply
    2,560.08x = 3,840.04 × 736.08
  4. Step 4: Simplify right side
    2,560.08x = 2,826,576.64
  5. Step 5: Solve for x
    x = 2,826,576.64/2,560.08
  6. Step 6: Final answer
    x = 1,104.10

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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.