Home / 2,974.18-4,103.86-1,647.86

Finding the Fourth Proportional to 2,974.18, 4,103.86 and 1,647.86

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Solution

The fourth proportional to 2,974.18, 4,103.86 and 1,647.86 is: 2,273.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.18 : 4,103.86 = 1,647.86 : x
  2. Step 2: Convert to fraction form
    2,974.18/4,103.86 = 1,647.86/x
  3. Step 3: Cross multiply
    2,974.18x = 4,103.86 × 1,647.86
  4. Step 4: Simplify right side
    2,974.18x = 6,762,586.74
  5. Step 5: Solve for x
    x = 6,762,586.74/2,974.18
  6. Step 6: Final answer
    x = 2,273.77

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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.