Home / 6,480.90-9,717.12-2,782.08

Finding the Fourth Proportional to 6,480.90, 9,717.12 and 2,782.08

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Solution

The fourth proportional to 6,480.90, 9,717.12 and 2,782.08 is: 4,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480.90 : 9,717.12 = 2,782.08 : x
  2. Step 2: Convert to fraction form
    6,480.90/9,717.12 = 2,782.08/x
  3. Step 3: Cross multiply
    6,480.90x = 9,717.12 × 2,782.08
  4. Step 4: Simplify right side
    6,480.90x = 27,033,805.21
  5. Step 5: Solve for x
    x = 27,033,805.21/6,480.90
  6. Step 6: Final answer
    x = 4,171.30

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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.