Home / 6,291.15-9,439.29-3,172.06

Finding the Fourth Proportional to 6,291.15, 9,439.29 and 3,172.06

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Solution

The fourth proportional to 6,291.15, 9,439.29 and 3,172.06 is: 4,759.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.15 : 9,439.29 = 3,172.06 : x
  2. Step 2: Convert to fraction form
    6,291.15/9,439.29 = 3,172.06/x
  3. Step 3: Cross multiply
    6,291.15x = 9,439.29 × 3,172.06
  4. Step 4: Simplify right side
    6,291.15x = 29,941,994.24
  5. Step 5: Solve for x
    x = 29,941,994.24/6,291.15
  6. Step 6: Final answer
    x = 4,759.38

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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.