Home / 7,051.39-10,578.51-2,120.83

Finding the Fourth Proportional to 7,051.39, 10,578.51 and 2,120.83

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Solution

The fourth proportional to 7,051.39, 10,578.51 and 2,120.83 is: 3,181.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,051.39 : 10,578.51 = 2,120.83 : x
  2. Step 2: Convert to fraction form
    7,051.39/10,578.51 = 2,120.83/x
  3. Step 3: Cross multiply
    7,051.39x = 10,578.51 × 2,120.83
  4. Step 4: Simplify right side
    7,051.39x = 22,435,194.92
  5. Step 5: Solve for x
    x = 22,435,194.92/7,051.39
  6. Step 6: Final answer
    x = 3,181.67

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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.