Home / 3,205.30-4,808.72-1,561.47

Finding the Fourth Proportional to 3,205.30, 4,808.72 and 1,561.47

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Solution

The fourth proportional to 3,205.30, 4,808.72 and 1,561.47 is: 2,342.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.30 : 4,808.72 = 1,561.47 : x
  2. Step 2: Convert to fraction form
    3,205.30/4,808.72 = 1,561.47/x
  3. Step 3: Cross multiply
    3,205.30x = 4,808.72 × 1,561.47
  4. Step 4: Simplify right side
    3,205.30x = 7,508,647.97
  5. Step 5: Solve for x
    x = 7,508,647.97/3,205.30
  6. Step 6: Final answer
    x = 2,342.58

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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.