Home / 3,261.11-4,890.63-1,069.32

Finding the Fourth Proportional to 3,261.11, 4,890.63 and 1,069.32

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Solution

The fourth proportional to 3,261.11, 4,890.63 and 1,069.32 is: 1,603.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.11 : 4,890.63 = 1,069.32 : x
  2. Step 2: Convert to fraction form
    3,261.11/4,890.63 = 1,069.32/x
  3. Step 3: Cross multiply
    3,261.11x = 4,890.63 × 1,069.32
  4. Step 4: Simplify right side
    3,261.11x = 5,229,648.47
  5. Step 5: Solve for x
    x = 5,229,648.47/3,261.11
  6. Step 6: Final answer
    x = 1,603.64

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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.