Home / 3,539.21-5,284.87-3,078.05

Finding the Fourth Proportional to 3,539.21, 5,284.87 and 3,078.05

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Solution

The fourth proportional to 3,539.21, 5,284.87 and 3,078.05 is: 4,596.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.21 : 5,284.87 = 3,078.05 : x
  2. Step 2: Convert to fraction form
    3,539.21/5,284.87 = 3,078.05/x
  3. Step 3: Cross multiply
    3,539.21x = 5,284.87 × 3,078.05
  4. Step 4: Simplify right side
    3,539.21x = 16,267,059.98
  5. Step 5: Solve for x
    x = 16,267,059.98/3,539.21
  6. Step 6: Final answer
    x = 4,596.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.