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Finding the Fourth Proportional to 3,909.93, 5,856.03 and 2,745.15

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Solution

The fourth proportional to 3,909.93, 5,856.03 and 2,745.15 is: 4,111.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.93 : 5,856.03 = 2,745.15 : x
  2. Step 2: Convert to fraction form
    3,909.93/5,856.03 = 2,745.15/x
  3. Step 3: Cross multiply
    3,909.93x = 5,856.03 × 2,745.15
  4. Step 4: Simplify right side
    3,909.93x = 16,075,680.75
  5. Step 5: Solve for x
    x = 16,075,680.75/3,909.93
  6. Step 6: Final answer
    x = 4,111.50

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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.