Home / 5,111.23-7,669.80-2,149.44

Finding the Fourth Proportional to 5,111.23, 7,669.80 and 2,149.44

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Solution

The fourth proportional to 5,111.23, 7,669.80 and 2,149.44 is: 3,225.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.23 : 7,669.80 = 2,149.44 : x
  2. Step 2: Convert to fraction form
    5,111.23/7,669.80 = 2,149.44/x
  3. Step 3: Cross multiply
    5,111.23x = 7,669.80 × 2,149.44
  4. Step 4: Simplify right side
    5,111.23x = 16,485,774.91
  5. Step 5: Solve for x
    x = 16,485,774.91/5,111.23
  6. Step 6: Final answer
    x = 3,225.40

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1.5x scale

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.