Home / 5,915.16-8,163.36-3,825.36

Finding the Fourth Proportional to 5,915.16, 8,163.36 and 3,825.36

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Solution

The fourth proportional to 5,915.16, 8,163.36 and 3,825.36 is: 5,279.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.16 : 8,163.36 = 3,825.36 : x
  2. Step 2: Convert to fraction form
    5,915.16/8,163.36 = 3,825.36/x
  3. Step 3: Cross multiply
    5,915.16x = 8,163.36 × 3,825.36
  4. Step 4: Simplify right side
    5,915.16x = 31,227,790.81
  5. Step 5: Solve for x
    x = 31,227,790.81/5,915.16
  6. Step 6: Final answer
    x = 5,279.28

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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.