Home / 7,123.07-10,684.62-1,928.94

Finding the Fourth Proportional to 7,123.07, 10,684.62 and 1,928.94

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Solution

The fourth proportional to 7,123.07, 10,684.62 and 1,928.94 is: 2,893.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.07 : 10,684.62 = 1,928.94 : x
  2. Step 2: Convert to fraction form
    7,123.07/10,684.62 = 1,928.94/x
  3. Step 3: Cross multiply
    7,123.07x = 10,684.62 × 1,928.94
  4. Step 4: Simplify right side
    7,123.07x = 20,609,990.90
  5. Step 5: Solve for x
    x = 20,609,990.90/7,123.07
  6. Step 6: Final answer
    x = 2,893.42

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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.