Home / 3,633.60-5,446.50-1,439.28

Finding the Fourth Proportional to 3,633.60, 5,446.50 and 1,439.28

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Solution

The fourth proportional to 3,633.60, 5,446.50 and 1,439.28 is: 2,157.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,633.60 : 5,446.50 = 1,439.28 : x
  2. Step 2: Convert to fraction form
    3,633.60/5,446.50 = 1,439.28/x
  3. Step 3: Cross multiply
    3,633.60x = 5,446.50 × 1,439.28
  4. Step 4: Simplify right side
    3,633.60x = 7,839,038.52
  5. Step 5: Solve for x
    x = 7,839,038.52/3,633.60
  6. Step 6: Final answer
    x = 2,157.38

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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.