Home / 4,986.30-7,476.21-2,390.70

Finding the Fourth Proportional to 4,986.30, 7,476.21 and 2,390.70

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Solution

The fourth proportional to 4,986.30, 7,476.21 and 2,390.70 is: 3,584.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.30 : 7,476.21 = 2,390.70 : x
  2. Step 2: Convert to fraction form
    4,986.30/7,476.21 = 2,390.70/x
  3. Step 3: Cross multiply
    4,986.30x = 7,476.21 × 2,390.70
  4. Step 4: Simplify right side
    4,986.30x = 17,873,375.25
  5. Step 5: Solve for x
    x = 17,873,375.25/4,986.30
  6. Step 6: Final answer
    x = 3,584.50

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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.