Home / 3,619.42-4,989.30-2,832.10

Finding the Fourth Proportional to 3,619.42, 4,989.30 and 2,832.10

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Solution

The fourth proportional to 3,619.42, 4,989.30 and 2,832.10 is: 3,903.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.42 : 4,989.30 = 2,832.10 : x
  2. Step 2: Convert to fraction form
    3,619.42/4,989.30 = 2,832.10/x
  3. Step 3: Cross multiply
    3,619.42x = 4,989.30 × 2,832.10
  4. Step 4: Simplify right side
    3,619.42x = 14,130,196.53
  5. Step 5: Solve for x
    x = 14,130,196.53/3,619.42
  6. Step 6: Final answer
    x = 3,903.99

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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.