Home / 7,103.26-10,656.80-2,172.77

Finding the Fourth Proportional to 7,103.26, 10,656.80 and 2,172.77

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Solution

The fourth proportional to 7,103.26, 10,656.80 and 2,172.77 is: 3,259.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,103.26 : 10,656.80 = 2,172.77 : x
  2. Step 2: Convert to fraction form
    7,103.26/10,656.80 = 2,172.77/x
  3. Step 3: Cross multiply
    7,103.26x = 10,656.80 × 2,172.77
  4. Step 4: Simplify right side
    7,103.26x = 23,154,727.48
  5. Step 5: Solve for x
    x = 23,154,727.48/7,103.26
  6. Step 6: Final answer
    x = 3,259.73

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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.