Home / 5,922.87-8,172.63-3,405.08

Finding the Fourth Proportional to 5,922.87, 8,172.63 and 3,405.08

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Solution

The fourth proportional to 5,922.87, 8,172.63 and 3,405.08 is: 4,698.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,922.87 : 8,172.63 = 3,405.08 : x
  2. Step 2: Convert to fraction form
    5,922.87/8,172.63 = 3,405.08/x
  3. Step 3: Cross multiply
    5,922.87x = 8,172.63 × 3,405.08
  4. Step 4: Simplify right side
    5,922.87x = 27,828,418.10
  5. Step 5: Solve for x
    x = 27,828,418.10/5,922.87
  6. Step 6: Final answer
    x = 4,698.47

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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.