Home / 7,148.82-10,724.26-2,218.90

Finding the Fourth Proportional to 7,148.82, 10,724.26 and 2,218.90

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Solution

The fourth proportional to 7,148.82, 10,724.26 and 2,218.90 is: 3,328.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148.82 : 10,724.26 = 2,218.90 : x
  2. Step 2: Convert to fraction form
    7,148.82/10,724.26 = 2,218.90/x
  3. Step 3: Cross multiply
    7,148.82x = 10,724.26 × 2,218.90
  4. Step 4: Simplify right side
    7,148.82x = 23,796,060.51
  5. Step 5: Solve for x
    x = 23,796,060.51/7,148.82
  6. Step 6: Final answer
    x = 3,328.67

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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.