Home / 2,125.56-2,933.85-1,379.48

Finding the Fourth Proportional to 2,125.56, 2,933.85 and 1,379.48

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Solution

The fourth proportional to 2,125.56, 2,933.85 and 1,379.48 is: 1,904.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.56 : 2,933.85 = 1,379.48 : x
  2. Step 2: Convert to fraction form
    2,125.56/2,933.85 = 1,379.48/x
  3. Step 3: Cross multiply
    2,125.56x = 2,933.85 × 1,379.48
  4. Step 4: Simplify right side
    2,125.56x = 4,047,172.73
  5. Step 5: Solve for x
    x = 4,047,172.73/2,125.56
  6. Step 6: Final answer
    x = 1,904.05

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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.