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Finding the Fourth Proportional to 1,633.88, 2,451.29 and 479.63

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Solution

The fourth proportional to 1,633.88, 2,451.29 and 479.63 is: 719.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,633.88 : 2,451.29 = 479.63 : x
  2. Step 2: Convert to fraction form
    1,633.88/2,451.29 = 479.63/x
  3. Step 3: Cross multiply
    1,633.88x = 2,451.29 × 479.63
  4. Step 4: Simplify right side
    1,633.88x = 1,175,697.57
  5. Step 5: Solve for x
    x = 1,175,697.57/1,633.88
  6. Step 6: Final answer
    x = 719.58

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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.