Home / 5,122.49-7,069.10-2,884.23

Finding the Fourth Proportional to 5,122.49, 7,069.10 and 2,884.23

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Solution

The fourth proportional to 5,122.49, 7,069.10 and 2,884.23 is: 3,980.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.49 : 7,069.10 = 2,884.23 : x
  2. Step 2: Convert to fraction form
    5,122.49/7,069.10 = 2,884.23/x
  3. Step 3: Cross multiply
    5,122.49x = 7,069.10 × 2,884.23
  4. Step 4: Simplify right side
    5,122.49x = 20,388,895.87
  5. Step 5: Solve for x
    x = 20,388,895.87/5,122.49
  6. Step 6: Final answer
    x = 3,980.27

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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.