Home / 4,111.08-6,166.50-1,645.20

Finding the Fourth Proportional to 4,111.08, 6,166.50 and 1,645.20

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Solution

The fourth proportional to 4,111.08, 6,166.50 and 1,645.20 is: 2,467.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,111.08 : 6,166.50 = 1,645.20 : x
  2. Step 2: Convert to fraction form
    4,111.08/6,166.50 = 1,645.20/x
  3. Step 3: Cross multiply
    4,111.08x = 6,166.50 × 1,645.20
  4. Step 4: Simplify right side
    4,111.08x = 10,145,125.80
  5. Step 5: Solve for x
    x = 10,145,125.80/4,111.08
  6. Step 6: Final answer
    x = 2,467.75

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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.