Home / 5,199.89-7,176.02-2,842.20

Finding the Fourth Proportional to 5,199.89, 7,176.02 and 2,842.20

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Solution

The fourth proportional to 5,199.89, 7,176.02 and 2,842.20 is: 3,922.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.89 : 7,176.02 = 2,842.20 : x
  2. Step 2: Convert to fraction form
    5,199.89/7,176.02 = 2,842.20/x
  3. Step 3: Cross multiply
    5,199.89x = 7,176.02 × 2,842.20
  4. Step 4: Simplify right side
    5,199.89x = 20,395,669.83
  5. Step 5: Solve for x
    x = 20,395,669.83/5,199.89
  6. Step 6: Final answer
    x = 3,922.33

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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.