Home / 2,986.88-4,476.06-1,425.60

Finding the Fourth Proportional to 2,986.88, 4,476.06 and 1,425.60

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Solution

The fourth proportional to 2,986.88, 4,476.06 and 1,425.60 is: 2,136.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.88 : 4,476.06 = 1,425.60 : x
  2. Step 2: Convert to fraction form
    2,986.88/4,476.06 = 1,425.60/x
  3. Step 3: Cross multiply
    2,986.88x = 4,476.06 × 1,425.60
  4. Step 4: Simplify right side
    2,986.88x = 6,381,071.14
  5. Step 5: Solve for x
    x = 6,381,071.14/2,986.88
  6. Step 6: Final answer
    x = 2,136.37

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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.