Home / 2,974.58-4,455.57-1,878.38

Finding the Fourth Proportional to 2,974.58, 4,455.57 and 1,878.38

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Solution

The fourth proportional to 2,974.58, 4,455.57 and 1,878.38 is: 2,813.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.58 : 4,455.57 = 1,878.38 : x
  2. Step 2: Convert to fraction form
    2,974.58/4,455.57 = 1,878.38/x
  3. Step 3: Cross multiply
    2,974.58x = 4,455.57 × 1,878.38
  4. Step 4: Simplify right side
    2,974.58x = 8,369,253.58
  5. Step 5: Solve for x
    x = 8,369,253.58/2,974.58
  6. Step 6: Final answer
    x = 2,813.59

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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.