Home / 3,890.55-5,834.31-1,697.79

Finding the Fourth Proportional to 3,890.55, 5,834.31 and 1,697.79

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Solution

The fourth proportional to 3,890.55, 5,834.31 and 1,697.79 is: 2,546.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.55 : 5,834.31 = 1,697.79 : x
  2. Step 2: Convert to fraction form
    3,890.55/5,834.31 = 1,697.79/x
  3. Step 3: Cross multiply
    3,890.55x = 5,834.31 × 1,697.79
  4. Step 4: Simplify right side
    3,890.55x = 9,905,433.17
  5. Step 5: Solve for x
    x = 9,905,433.17/3,890.55
  6. Step 6: Final answer
    x = 2,546.02

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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.