Home / 7,120.06-10,682.37-3,422.55

Finding the Fourth Proportional to 7,120.06, 10,682.37 and 3,422.55

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Solution

The fourth proportional to 7,120.06, 10,682.37 and 3,422.55 is: 5,134.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.06 : 10,682.37 = 3,422.55 : x
  2. Step 2: Convert to fraction form
    7,120.06/10,682.37 = 3,422.55/x
  3. Step 3: Cross multiply
    7,120.06x = 10,682.37 × 3,422.55
  4. Step 4: Simplify right side
    7,120.06x = 36,560,985.50
  5. Step 5: Solve for x
    x = 36,560,985.50/7,120.06
  6. Step 6: Final answer
    x = 5,134.93

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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.