Home / 5,440.55-8,158.80-3,792.20

Finding the Fourth Proportional to 5,440.55, 8,158.80 and 3,792.20

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Solution

The fourth proportional to 5,440.55, 8,158.80 and 3,792.20 is: 5,686.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.55 : 8,158.80 = 3,792.20 : x
  2. Step 2: Convert to fraction form
    5,440.55/8,158.80 = 3,792.20/x
  3. Step 3: Cross multiply
    5,440.55x = 8,158.80 × 3,792.20
  4. Step 4: Simplify right side
    5,440.55x = 30,939,801.36
  5. Step 5: Solve for x
    x = 30,939,801.36/5,440.55
  6. Step 6: Final answer
    x = 5,686.89

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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.