Home / 3,485.38-4,808.45-1,992.50

Finding the Fourth Proportional to 3,485.38, 4,808.45 and 1,992.50

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Solution

The fourth proportional to 3,485.38, 4,808.45 and 1,992.50 is: 2,748.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.38 : 4,808.45 = 1,992.50 : x
  2. Step 2: Convert to fraction form
    3,485.38/4,808.45 = 1,992.50/x
  3. Step 3: Cross multiply
    3,485.38x = 4,808.45 × 1,992.50
  4. Step 4: Simplify right side
    3,485.38x = 9,580,817.56
  5. Step 5: Solve for x
    x = 9,580,817.56/3,485.38
  6. Step 6: Final answer
    x = 2,748.86

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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.