Home / 7,106.94-9,806.58-4,122.90

Finding the Fourth Proportional to 7,106.94, 9,806.58 and 4,122.90

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Solution

The fourth proportional to 7,106.94, 9,806.58 and 4,122.90 is: 5,689.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.94 : 9,806.58 = 4,122.90 : x
  2. Step 2: Convert to fraction form
    7,106.94/9,806.58 = 4,122.90/x
  3. Step 3: Cross multiply
    7,106.94x = 9,806.58 × 4,122.90
  4. Step 4: Simplify right side
    7,106.94x = 40,431,548.68
  5. Step 5: Solve for x
    x = 40,431,548.68/7,106.94
  6. Step 6: Final answer
    x = 5,689.02

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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.