Home / 7,121.44-10,677.03-2,678.42

Finding the Fourth Proportional to 7,121.44, 10,677.03 and 2,678.42

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Solution

The fourth proportional to 7,121.44, 10,677.03 and 2,678.42 is: 4,015.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.44 : 10,677.03 = 2,678.42 : x
  2. Step 2: Convert to fraction form
    7,121.44/10,677.03 = 2,678.42/x
  3. Step 3: Cross multiply
    7,121.44x = 10,677.03 × 2,678.42
  4. Step 4: Simplify right side
    7,121.44x = 28,597,570.69
  5. Step 5: Solve for x
    x = 28,597,570.69/7,121.44
  6. Step 6: Final answer
    x = 4,015.70

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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.