Home / 4,682-7,028.40-2,378.36

Finding the Fourth Proportional to 4,682, 7,028.40 and 2,378.36

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Solution

The fourth proportional to 4,682, 7,028.40 and 2,378.36 is: 3,570.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,682 : 7,028.40 = 2,378.36 : x
  2. Step 2: Convert to fraction form
    4,682/7,028.40 = 2,378.36/x
  3. Step 3: Cross multiply
    4,682x = 7,028.40 × 2,378.36
  4. Step 4: Simplify right side
    4,682x = 16,716,065.42
  5. Step 5: Solve for x
    x = 16,716,065.42/4,682
  6. Step 6: Final answer
    x = 3,570.28

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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.