Home / 2,578.41-3,870.36-1,539.63

Finding the Fourth Proportional to 2,578.41, 3,870.36 and 1,539.63

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Solution

The fourth proportional to 2,578.41, 3,870.36 and 1,539.63 is: 2,311.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.41 : 3,870.36 = 1,539.63 : x
  2. Step 2: Convert to fraction form
    2,578.41/3,870.36 = 1,539.63/x
  3. Step 3: Cross multiply
    2,578.41x = 3,870.36 × 1,539.63
  4. Step 4: Simplify right side
    2,578.41x = 5,958,922.37
  5. Step 5: Solve for x
    x = 5,958,922.37/2,578.41
  6. Step 6: Final answer
    x = 2,311.08

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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.