Home / 7,325.81-10,986.58-4,205.28

Finding the Fourth Proportional to 7,325.81, 10,986.58 and 4,205.28

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Solution

The fourth proportional to 7,325.81, 10,986.58 and 4,205.28 is: 6,306.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,325.81 : 10,986.58 = 4,205.28 : x
  2. Step 2: Convert to fraction form
    7,325.81/10,986.58 = 4,205.28/x
  3. Step 3: Cross multiply
    7,325.81x = 10,986.58 × 4,205.28
  4. Step 4: Simplify right side
    7,325.81x = 46,201,645.14
  5. Step 5: Solve for x
    x = 46,201,645.14/7,325.81
  6. Step 6: Final answer
    x = 6,306.69

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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.