Home / 6,979.80-10,465.91-2,817.69

Finding the Fourth Proportional to 6,979.80, 10,465.91 and 2,817.69

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Solution

The fourth proportional to 6,979.80, 10,465.91 and 2,817.69 is: 4,225.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.80 : 10,465.91 = 2,817.69 : x
  2. Step 2: Convert to fraction form
    6,979.80/10,465.91 = 2,817.69/x
  3. Step 3: Cross multiply
    6,979.80x = 10,465.91 × 2,817.69
  4. Step 4: Simplify right side
    6,979.80x = 29,489,647.18
  5. Step 5: Solve for x
    x = 29,489,647.18/6,979.80
  6. Step 6: Final answer
    x = 4,225.00

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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.