Home / 7,138.50-10,708.04-2,208.23

Finding the Fourth Proportional to 7,138.50, 10,708.04 and 2,208.23

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Solution

The fourth proportional to 7,138.50, 10,708.04 and 2,208.23 is: 3,312.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.50 : 10,708.04 = 2,208.23 : x
  2. Step 2: Convert to fraction form
    7,138.50/10,708.04 = 2,208.23/x
  3. Step 3: Cross multiply
    7,138.50x = 10,708.04 × 2,208.23
  4. Step 4: Simplify right side
    7,138.50x = 23,645,807.30
  5. Step 5: Solve for x
    x = 23,645,807.30/7,138.50
  6. Step 6: Final answer
    x = 3,312.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.