Home / 3,915.62-5,403.44-2,236.99

Finding the Fourth Proportional to 3,915.62, 5,403.44 and 2,236.99

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Solution

The fourth proportional to 3,915.62, 5,403.44 and 2,236.99 is: 3,086.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.62 : 5,403.44 = 2,236.99 : x
  2. Step 2: Convert to fraction form
    3,915.62/5,403.44 = 2,236.99/x
  3. Step 3: Cross multiply
    3,915.62x = 5,403.44 × 2,236.99
  4. Step 4: Simplify right side
    3,915.62x = 12,087,430.06
  5. Step 5: Solve for x
    x = 12,087,430.06/3,915.62
  6. Step 6: Final answer
    x = 3,086.98

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1.5x scale

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.