Home / 5,229.80-7,860.90-5,132.60

Finding the Fourth Proportional to 5,229.80, 7,860.90 and 5,132.60

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Solution

The fourth proportional to 5,229.80, 7,860.90 and 5,132.60 is: 7,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.80 : 7,860.90 = 5,132.60 : x
  2. Step 2: Convert to fraction form
    5,229.80/7,860.90 = 5,132.60/x
  3. Step 3: Cross multiply
    5,229.80x = 7,860.90 × 5,132.60
  4. Step 4: Simplify right side
    5,229.80x = 40,346,855.34
  5. Step 5: Solve for x
    x = 40,346,855.34/5,229.80
  6. Step 6: Final answer
    x = 7,714.80

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1.5x scale

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.