Home / 6,571.18-9,855.70-1,890.12

Finding the Fourth Proportional to 6,571.18, 9,855.70 and 1,890.12

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Solution

The fourth proportional to 6,571.18, 9,855.70 and 1,890.12 is: 2,834.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,571.18 : 9,855.70 = 1,890.12 : x
  2. Step 2: Convert to fraction form
    6,571.18/9,855.70 = 1,890.12/x
  3. Step 3: Cross multiply
    6,571.18x = 9,855.70 × 1,890.12
  4. Step 4: Simplify right side
    6,571.18x = 18,628,455.68
  5. Step 5: Solve for x
    x = 18,628,455.68/6,571.18
  6. Step 6: Final answer
    x = 2,834.87

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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.