Home / 5,021.20-7,531.80-3,271.60

Finding the Fourth Proportional to 5,021.20, 7,531.80 and 3,271.60

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Solution

The fourth proportional to 5,021.20, 7,531.80 and 3,271.60 is: 4,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.20 : 7,531.80 = 3,271.60 : x
  2. Step 2: Convert to fraction form
    5,021.20/7,531.80 = 3,271.60/x
  3. Step 3: Cross multiply
    5,021.20x = 7,531.80 × 3,271.60
  4. Step 4: Simplify right side
    5,021.20x = 24,641,036.88
  5. Step 5: Solve for x
    x = 24,641,036.88/5,021.20
  6. Step 6: Final answer
    x = 4,907.40

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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.