Home / 3,317.12-4,972.80-1,672.28

Finding the Fourth Proportional to 3,317.12, 4,972.80 and 1,672.28

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Solution

The fourth proportional to 3,317.12, 4,972.80 and 1,672.28 is: 2,506.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.12 : 4,972.80 = 1,672.28 : x
  2. Step 2: Convert to fraction form
    3,317.12/4,972.80 = 1,672.28/x
  3. Step 3: Cross multiply
    3,317.12x = 4,972.80 × 1,672.28
  4. Step 4: Simplify right side
    3,317.12x = 8,315,913.98
  5. Step 5: Solve for x
    x = 8,315,913.98/3,317.12
  6. Step 6: Final answer
    x = 2,506.97

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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.