Home / 5,111.42-7,667.13-1,601.70

Finding the Fourth Proportional to 5,111.42, 7,667.13 and 1,601.70

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Solution

The fourth proportional to 5,111.42, 7,667.13 and 1,601.70 is: 2,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.42 : 7,667.13 = 1,601.70 : x
  2. Step 2: Convert to fraction form
    5,111.42/7,667.13 = 1,601.70/x
  3. Step 3: Cross multiply
    5,111.42x = 7,667.13 × 1,601.70
  4. Step 4: Simplify right side
    5,111.42x = 12,280,467.87
  5. Step 5: Solve for x
    x = 12,280,467.87/5,111.42
  6. Step 6: Final answer
    x = 2,402.55

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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.