Home / 5,088.42-7,021.80-2,850.30

Finding the Fourth Proportional to 5,088.42, 7,021.80 and 2,850.30

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Solution

The fourth proportional to 5,088.42, 7,021.80 and 2,850.30 is: 3,933.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,088.42 : 7,021.80 = 2,850.30 : x
  2. Step 2: Convert to fraction form
    5,088.42/7,021.80 = 2,850.30/x
  3. Step 3: Cross multiply
    5,088.42x = 7,021.80 × 2,850.30
  4. Step 4: Simplify right side
    5,088.42x = 20,014,236.54
  5. Step 5: Solve for x
    x = 20,014,236.54/5,088.42
  6. Step 6: Final answer
    x = 3,933.29

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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.