Home / 2,391.96-3,589.98-1,776.85

Finding the Fourth Proportional to 2,391.96, 3,589.98 and 1,776.85

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Solution

The fourth proportional to 2,391.96, 3,589.98 and 1,776.85 is: 2,666.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.96 : 3,589.98 = 1,776.85 : x
  2. Step 2: Convert to fraction form
    2,391.96/3,589.98 = 1,776.85/x
  3. Step 3: Cross multiply
    2,391.96x = 3,589.98 × 1,776.85
  4. Step 4: Simplify right side
    2,391.96x = 6,378,855.96
  5. Step 5: Solve for x
    x = 6,378,855.96/2,391.96
  6. Step 6: Final answer
    x = 2,666.79

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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.