Home / 7,106.16-9,806.25-3,919.58

Finding the Fourth Proportional to 7,106.16, 9,806.25 and 3,919.58

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Solution

The fourth proportional to 7,106.16, 9,806.25 and 3,919.58 is: 5,408.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.16 : 9,806.25 = 3,919.58 : x
  2. Step 2: Convert to fraction form
    7,106.16/9,806.25 = 3,919.58/x
  3. Step 3: Cross multiply
    7,106.16x = 9,806.25 × 3,919.58
  4. Step 4: Simplify right side
    7,106.16x = 38,436,364.51
  5. Step 5: Solve for x
    x = 38,436,364.51/7,106.16
  6. Step 6: Final answer
    x = 5,408.88

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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.