Home / 2,270.84-3,131.45-2,138.55

Finding the Fourth Proportional to 2,270.84, 3,131.45 and 2,138.55

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Solution

The fourth proportional to 2,270.84, 3,131.45 and 2,138.55 is: 2,949.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.84 : 3,131.45 = 2,138.55 : x
  2. Step 2: Convert to fraction form
    2,270.84/3,131.45 = 2,138.55/x
  3. Step 3: Cross multiply
    2,270.84x = 3,131.45 × 2,138.55
  4. Step 4: Simplify right side
    2,270.84x = 6,696,762.40
  5. Step 5: Solve for x
    x = 6,696,762.40/2,270.84
  6. Step 6: Final answer
    x = 2,949.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.