Home / 2,968.48-4,069.93-2,915.80

Finding the Fourth Proportional to 2,968.48, 4,069.93 and 2,915.80

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Solution

The fourth proportional to 2,968.48, 4,069.93 and 2,915.80 is: 3,997.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968.48 : 4,069.93 = 2,915.80 : x
  2. Step 2: Convert to fraction form
    2,968.48/4,069.93 = 2,915.80/x
  3. Step 3: Cross multiply
    2,968.48x = 4,069.93 × 2,915.80
  4. Step 4: Simplify right side
    2,968.48x = 11,867,101.89
  5. Step 5: Solve for x
    x = 11,867,101.89/2,968.48
  6. Step 6: Final answer
    x = 3,997.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.