Home / 3,174.80-4,751.40-2,915.60

Finding the Fourth Proportional to 3,174.80, 4,751.40 and 2,915.60

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Solution

The fourth proportional to 3,174.80, 4,751.40 and 2,915.60 is: 4,363.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.80 : 4,751.40 = 2,915.60 : x
  2. Step 2: Convert to fraction form
    3,174.80/4,751.40 = 2,915.60/x
  3. Step 3: Cross multiply
    3,174.80x = 4,751.40 × 2,915.60
  4. Step 4: Simplify right side
    3,174.80x = 13,853,181.84
  5. Step 5: Solve for x
    x = 13,853,181.84/3,174.80
  6. Step 6: Final answer
    x = 4,363.48

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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.