Home / 2,048.22-2,840.19-1,978.95

Finding the Fourth Proportional to 2,048.22, 2,840.19 and 1,978.95

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Solution

The fourth proportional to 2,048.22, 2,840.19 and 1,978.95 is: 2,744.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048.22 : 2,840.19 = 1,978.95 : x
  2. Step 2: Convert to fraction form
    2,048.22/2,840.19 = 1,978.95/x
  3. Step 3: Cross multiply
    2,048.22x = 2,840.19 × 1,978.95
  4. Step 4: Simplify right side
    2,048.22x = 5,620,594.00
  5. Step 5: Solve for x
    x = 5,620,594.00/2,048.22
  6. Step 6: Final answer
    x = 2,744.14

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.