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Finding the Fourth Proportional to 5,616.74, 7,745.31 and 3,727.64

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Solution

The fourth proportional to 5,616.74, 7,745.31 and 3,727.64 is: 5,140.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.74 : 7,745.31 = 3,727.64 : x
  2. Step 2: Convert to fraction form
    5,616.74/7,745.31 = 3,727.64/x
  3. Step 3: Cross multiply
    5,616.74x = 7,745.31 × 3,727.64
  4. Step 4: Simplify right side
    5,616.74x = 28,871,688.64
  5. Step 5: Solve for x
    x = 28,871,688.64/5,616.74
  6. Step 6: Final answer
    x = 5,140.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.