Home / 6,619.42-9,914.01-3,159.10

Finding the Fourth Proportional to 6,619.42, 9,914.01 and 3,159.10

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Solution

The fourth proportional to 6,619.42, 9,914.01 and 3,159.10 is: 4,731.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.42 : 9,914.01 = 3,159.10 : x
  2. Step 2: Convert to fraction form
    6,619.42/9,914.01 = 3,159.10/x
  3. Step 3: Cross multiply
    6,619.42x = 9,914.01 × 3,159.10
  4. Step 4: Simplify right side
    6,619.42x = 31,319,348.99
  5. Step 5: Solve for x
    x = 31,319,348.99/6,619.42
  6. Step 6: Final answer
    x = 4,731.43

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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.