Home / 7,107.98-9,806.37-4,122.14

Finding the Fourth Proportional to 7,107.98, 9,806.37 and 4,122.14

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Solution

The fourth proportional to 7,107.98, 9,806.37 and 4,122.14 is: 5,687.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.98 : 9,806.37 = 4,122.14 : x
  2. Step 2: Convert to fraction form
    7,107.98/9,806.37 = 4,122.14/x
  3. Step 3: Cross multiply
    7,107.98x = 9,806.37 × 4,122.14
  4. Step 4: Simplify right side
    7,107.98x = 40,423,230.03
  5. Step 5: Solve for x
    x = 40,423,230.03/7,107.98
  6. Step 6: Final answer
    x = 5,687.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.