Home / 2,855.45-3,941.18-1,859

Finding the Fourth Proportional to 2,855.45, 3,941.18 and 1,859

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Solution

The fourth proportional to 2,855.45, 3,941.18 and 1,859 is: 2,565.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.45 : 3,941.18 = 1,859 : x
  2. Step 2: Convert to fraction form
    2,855.45/3,941.18 = 1,859/x
  3. Step 3: Cross multiply
    2,855.45x = 3,941.18 × 1,859
  4. Step 4: Simplify right side
    2,855.45x = 7,326,653.62
  5. Step 5: Solve for x
    x = 7,326,653.62/2,855.45
  6. Step 6: Final answer
    x = 2,565.85

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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.