Home / 2,583.36-3,870.49-2,120.45

Finding the Fourth Proportional to 2,583.36, 3,870.49 and 2,120.45

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Solution

The fourth proportional to 2,583.36, 3,870.49 and 2,120.45 is: 3,176.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,583.36 : 3,870.49 = 2,120.45 : x
  2. Step 2: Convert to fraction form
    2,583.36/3,870.49 = 2,120.45/x
  3. Step 3: Cross multiply
    2,583.36x = 3,870.49 × 2,120.45
  4. Step 4: Simplify right side
    2,583.36x = 8,207,180.52
  5. Step 5: Solve for x
    x = 8,207,180.52/2,583.36
  6. Step 6: Final answer
    x = 3,176.94

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.