Home / 2,488.64-3,732.32-1,272.64

Finding the Fourth Proportional to 2,488.64, 3,732.32 and 1,272.64

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Solution

The fourth proportional to 2,488.64, 3,732.32 and 1,272.64 is: 1,908.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.64 : 3,732.32 = 1,272.64 : x
  2. Step 2: Convert to fraction form
    2,488.64/3,732.32 = 1,272.64/x
  3. Step 3: Cross multiply
    2,488.64x = 3,732.32 × 1,272.64
  4. Step 4: Simplify right side
    2,488.64x = 4,749,899.72
  5. Step 5: Solve for x
    x = 4,749,899.72/2,488.64
  6. Step 6: Final answer
    x = 1,908.63

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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.