Home / 2,042.08-3,069.24-1,316.32

Finding the Fourth Proportional to 2,042.08, 3,069.24 and 1,316.32

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Solution

The fourth proportional to 2,042.08, 3,069.24 and 1,316.32 is: 1,978.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,042.08 : 3,069.24 = 1,316.32 : x
  2. Step 2: Convert to fraction form
    2,042.08/3,069.24 = 1,316.32/x
  3. Step 3: Cross multiply
    2,042.08x = 3,069.24 × 1,316.32
  4. Step 4: Simplify right side
    2,042.08x = 4,040,102.00
  5. Step 5: Solve for x
    x = 4,040,102.00/2,042.08
  6. Step 6: Final answer
    x = 1,978.42

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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.