Home / 5,111.55-7,667.32-1,601.83

Finding the Fourth Proportional to 5,111.55, 7,667.32 and 1,601.83

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Solution

The fourth proportional to 5,111.55, 7,667.32 and 1,601.83 is: 2,402.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.55 : 7,667.32 = 1,601.83 : x
  2. Step 2: Convert to fraction form
    5,111.55/7,667.32 = 1,601.83/x
  3. Step 3: Cross multiply
    5,111.55x = 7,667.32 × 1,601.83
  4. Step 4: Simplify right side
    5,111.55x = 12,281,722.03
  5. Step 5: Solve for x
    x = 12,281,722.03/5,111.55
  6. Step 6: Final answer
    x = 2,402.74

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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.