Home / 7,106.43-9,806.71-4,122.54

Finding the Fourth Proportional to 7,106.43, 9,806.71 and 4,122.54

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Solution

The fourth proportional to 7,106.43, 9,806.71 and 4,122.54 is: 5,689.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.43 : 9,806.71 = 4,122.54 : x
  2. Step 2: Convert to fraction form
    7,106.43/9,806.71 = 4,122.54/x
  3. Step 3: Cross multiply
    7,106.43x = 9,806.71 × 4,122.54
  4. Step 4: Simplify right side
    7,106.43x = 40,428,554.24
  5. Step 5: Solve for x
    x = 40,428,554.24/7,106.43
  6. Step 6: Final answer
    x = 5,689.01

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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.