Home / 2,986.98-4,131.30-2,363.70

Finding the Fourth Proportional to 2,986.98, 4,131.30 and 2,363.70

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Solution

The fourth proportional to 2,986.98, 4,131.30 and 2,363.70 is: 3,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.98 : 4,131.30 = 2,363.70 : x
  2. Step 2: Convert to fraction form
    2,986.98/4,131.30 = 2,363.70/x
  3. Step 3: Cross multiply
    2,986.98x = 4,131.30 × 2,363.70
  4. Step 4: Simplify right side
    2,986.98x = 9,765,153.81
  5. Step 5: Solve for x
    x = 9,765,153.81/2,986.98
  6. Step 6: Final answer
    x = 3,269.24

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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.