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Finding the Fourth Proportional to 3,652.84, 5,047.72 and 2,989.44

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Solution

The fourth proportional to 3,652.84, 5,047.72 and 2,989.44 is: 4,130.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,652.84 : 5,047.72 = 2,989.44 : x
  2. Step 2: Convert to fraction form
    3,652.84/5,047.72 = 2,989.44/x
  3. Step 3: Cross multiply
    3,652.84x = 5,047.72 × 2,989.44
  4. Step 4: Simplify right side
    3,652.84x = 15,089,856.08
  5. Step 5: Solve for x
    x = 15,089,856.08/3,652.84
  6. Step 6: Final answer
    x = 4,130.99

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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.