Home / 4,747.95-7,121.34-1,974.96

Finding the Fourth Proportional to 4,747.95, 7,121.34 and 1,974.96

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Solution

The fourth proportional to 4,747.95, 7,121.34 and 1,974.96 is: 2,962.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.95 : 7,121.34 = 1,974.96 : x
  2. Step 2: Convert to fraction form
    4,747.95/7,121.34 = 1,974.96/x
  3. Step 3: Cross multiply
    4,747.95x = 7,121.34 × 1,974.96
  4. Step 4: Simplify right side
    4,747.95x = 14,064,361.65
  5. Step 5: Solve for x
    x = 14,064,361.65/4,747.95
  6. Step 6: Final answer
    x = 2,962.20

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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.