Home / 5,122.42-7,069.29-2,884.50

Finding the Fourth Proportional to 5,122.42, 7,069.29 and 2,884.50

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Solution

The fourth proportional to 5,122.42, 7,069.29 and 2,884.50 is: 3,980.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.42 : 7,069.29 = 2,884.50 : x
  2. Step 2: Convert to fraction form
    5,122.42/7,069.29 = 2,884.50/x
  3. Step 3: Cross multiply
    5,122.42x = 7,069.29 × 2,884.50
  4. Step 4: Simplify right side
    5,122.42x = 20,391,367.01
  5. Step 5: Solve for x
    x = 20,391,367.01/5,122.42
  6. Step 6: Final answer
    x = 3,980.81

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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.