Home / 5,390-8,071.04-3,200.24

Finding the Fourth Proportional to 5,390, 8,071.04 and 3,200.24

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Solution

The fourth proportional to 5,390, 8,071.04 and 3,200.24 is: 4,792.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390 : 8,071.04 = 3,200.24 : x
  2. Step 2: Convert to fraction form
    5,390/8,071.04 = 3,200.24/x
  3. Step 3: Cross multiply
    5,390x = 8,071.04 × 3,200.24
  4. Step 4: Simplify right side
    5,390x = 25,829,265.05
  5. Step 5: Solve for x
    x = 25,829,265.05/5,390
  6. Step 6: Final answer
    x = 4,792.07

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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.