Home / 3,617.38-5,428.10-3,589.84

Finding the Fourth Proportional to 3,617.38, 5,428.10 and 3,589.84

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Solution

The fourth proportional to 3,617.38, 5,428.10 and 3,589.84 is: 5,386.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.38 : 5,428.10 = 3,589.84 : x
  2. Step 2: Convert to fraction form
    3,617.38/5,428.10 = 3,589.84/x
  3. Step 3: Cross multiply
    3,617.38x = 5,428.10 × 3,589.84
  4. Step 4: Simplify right side
    3,617.38x = 19,486,010.50
  5. Step 5: Solve for x
    x = 19,486,010.50/3,617.38
  6. Step 6: Final answer
    x = 5,386.77

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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.