Home / 3,620.10-5,429.61-1,154.46

Finding the Fourth Proportional to 3,620.10, 5,429.61 and 1,154.46

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Solution

The fourth proportional to 3,620.10, 5,429.61 and 1,154.46 is: 1,731.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.10 : 5,429.61 = 1,154.46 : x
  2. Step 2: Convert to fraction form
    3,620.10/5,429.61 = 1,154.46/x
  3. Step 3: Cross multiply
    3,620.10x = 5,429.61 × 1,154.46
  4. Step 4: Simplify right side
    3,620.10x = 6,268,267.56
  5. Step 5: Solve for x
    x = 6,268,267.56/3,620.10
  6. Step 6: Final answer
    x = 1,731.52

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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.