Home / 7,722.12-10,656.58-4,185.34

Finding the Fourth Proportional to 7,722.12, 10,656.58 and 4,185.34

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Solution

The fourth proportional to 7,722.12, 10,656.58 and 4,185.34 is: 5,775.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,722.12 : 10,656.58 = 4,185.34 : x
  2. Step 2: Convert to fraction form
    7,722.12/10,656.58 = 4,185.34/x
  3. Step 3: Cross multiply
    7,722.12x = 10,656.58 × 4,185.34
  4. Step 4: Simplify right side
    7,722.12x = 44,601,410.54
  5. Step 5: Solve for x
    x = 44,601,410.54/7,722.12
  6. Step 6: Final answer
    x = 5,775.80

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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.