Home / 6,518.97-9,779.91-2,078.01

Finding the Fourth Proportional to 6,518.97, 9,779.91 and 2,078.01

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Solution

The fourth proportional to 6,518.97, 9,779.91 and 2,078.01 is: 3,117.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,518.97 : 9,779.91 = 2,078.01 : x
  2. Step 2: Convert to fraction form
    6,518.97/9,779.91 = 2,078.01/x
  3. Step 3: Cross multiply
    6,518.97x = 9,779.91 × 2,078.01
  4. Step 4: Simplify right side
    6,518.97x = 20,322,750.78
  5. Step 5: Solve for x
    x = 20,322,750.78/6,518.97
  6. Step 6: Final answer
    x = 3,117.48

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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.