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Finding the Fourth Proportional to 3,317.64, 4,977.04 and 1,651.88

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Solution

The fourth proportional to 3,317.64, 4,977.04 and 1,651.88 is: 2,478.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.64 : 4,977.04 = 1,651.88 : x
  2. Step 2: Convert to fraction form
    3,317.64/4,977.04 = 1,651.88/x
  3. Step 3: Cross multiply
    3,317.64x = 4,977.04 × 1,651.88
  4. Step 4: Simplify right side
    3,317.64x = 8,221,472.84
  5. Step 5: Solve for x
    x = 8,221,472.84/3,317.64
  6. Step 6: Final answer
    x = 2,478.11

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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.