Home / 7,120.92-10,675.20-3,998.37

Finding the Fourth Proportional to 7,120.92, 10,675.20 and 3,998.37

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Solution

The fourth proportional to 7,120.92, 10,675.20 and 3,998.37 is: 5,994.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.92 : 10,675.20 = 3,998.37 : x
  2. Step 2: Convert to fraction form
    7,120.92/10,675.20 = 3,998.37/x
  3. Step 3: Cross multiply
    7,120.92x = 10,675.20 × 3,998.37
  4. Step 4: Simplify right side
    7,120.92x = 42,683,399.42
  5. Step 5: Solve for x
    x = 42,683,399.42/7,120.92
  6. Step 6: Final answer
    x = 5,994.08

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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.