Home / 5,121.92-7,068.93-2,884.24

Finding the Fourth Proportional to 5,121.92, 7,068.93 and 2,884.24

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Solution

The fourth proportional to 5,121.92, 7,068.93 and 2,884.24 is: 3,980.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.92 : 7,068.93 = 2,884.24 : x
  2. Step 2: Convert to fraction form
    5,121.92/7,068.93 = 2,884.24/x
  3. Step 3: Cross multiply
    5,121.92x = 7,068.93 × 2,884.24
  4. Step 4: Simplify right side
    5,121.92x = 20,388,448.92
  5. Step 5: Solve for x
    x = 20,388,448.92/5,121.92
  6. Step 6: Final answer
    x = 3,980.62

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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.