Home / 3,926.70-5,890.86-1,953.39

Finding the Fourth Proportional to 3,926.70, 5,890.86 and 1,953.39

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Solution

The fourth proportional to 3,926.70, 5,890.86 and 1,953.39 is: 2,930.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.70 : 5,890.86 = 1,953.39 : x
  2. Step 2: Convert to fraction form
    3,926.70/5,890.86 = 1,953.39/x
  3. Step 3: Cross multiply
    3,926.70x = 5,890.86 × 1,953.39
  4. Step 4: Simplify right side
    3,926.70x = 11,507,147.02
  5. Step 5: Solve for x
    x = 11,507,147.02/3,926.70
  6. Step 6: Final answer
    x = 2,930.49

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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.