Home / 2,949.12-4,069.64-1,622.57

Finding the Fourth Proportional to 2,949.12, 4,069.64 and 1,622.57

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Solution

The fourth proportional to 2,949.12, 4,069.64 and 1,622.57 is: 2,239.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.12 : 4,069.64 = 1,622.57 : x
  2. Step 2: Convert to fraction form
    2,949.12/4,069.64 = 1,622.57/x
  3. Step 3: Cross multiply
    2,949.12x = 4,069.64 × 1,622.57
  4. Step 4: Simplify right side
    2,949.12x = 6,603,247.31
  5. Step 5: Solve for x
    x = 6,603,247.31/2,949.12
  6. Step 6: Final answer
    x = 2,239.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.