Home / 4,813.80-7,220.64-1,890.06

Finding the Fourth Proportional to 4,813.80, 7,220.64 and 1,890.06

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Solution

The fourth proportional to 4,813.80, 7,220.64 and 1,890.06 is: 2,835.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,813.80 : 7,220.64 = 1,890.06 : x
  2. Step 2: Convert to fraction form
    4,813.80/7,220.64 = 1,890.06/x
  3. Step 3: Cross multiply
    4,813.80x = 7,220.64 × 1,890.06
  4. Step 4: Simplify right side
    4,813.80x = 13,647,442.84
  5. Step 5: Solve for x
    x = 13,647,442.84/4,813.80
  6. Step 6: Final answer
    x = 2,835.07

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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.