Home / 3,620.48-5,428.68-1,154.72

Finding the Fourth Proportional to 3,620.48, 5,428.68 and 1,154.72

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Solution

The fourth proportional to 3,620.48, 5,428.68 and 1,154.72 is: 1,731.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.48 : 5,428.68 = 1,154.72 : x
  2. Step 2: Convert to fraction form
    3,620.48/5,428.68 = 1,154.72/x
  3. Step 3: Cross multiply
    3,620.48x = 5,428.68 × 1,154.72
  4. Step 4: Simplify right side
    3,620.48x = 6,268,605.37
  5. Step 5: Solve for x
    x = 6,268,605.37/3,620.48
  6. Step 6: Final answer
    x = 1,731.43

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1.5x scale

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.