Home / 3,317.82-4,972.08-2,621.40

Finding the Fourth Proportional to 3,317.82, 4,972.08 and 2,621.40

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Solution

The fourth proportional to 3,317.82, 4,972.08 and 2,621.40 is: 3,928.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.82 : 4,972.08 = 2,621.40 : x
  2. Step 2: Convert to fraction form
    3,317.82/4,972.08 = 2,621.40/x
  3. Step 3: Cross multiply
    3,317.82x = 4,972.08 × 2,621.40
  4. Step 4: Simplify right side
    3,317.82x = 13,033,810.51
  5. Step 5: Solve for x
    x = 13,033,810.51/3,317.82
  6. Step 6: Final answer
    x = 3,928.43

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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.