Home / 4,078.84-6,113.96-1,889

Finding the Fourth Proportional to 4,078.84, 6,113.96 and 1,889

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Solution

The fourth proportional to 4,078.84, 6,113.96 and 1,889 is: 2,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.84 : 6,113.96 = 1,889 : x
  2. Step 2: Convert to fraction form
    4,078.84/6,113.96 = 1,889/x
  3. Step 3: Cross multiply
    4,078.84x = 6,113.96 × 1,889
  4. Step 4: Simplify right side
    4,078.84x = 11,549,261.00
  5. Step 5: Solve for x
    x = 11,549,261.00/4,078.84
  6. Step 6: Final answer
    x = 2,831.51

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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.