Home / 3,619.38-5,429.89-1,154.35

Finding the Fourth Proportional to 3,619.38, 5,429.89 and 1,154.35

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Solution

The fourth proportional to 3,619.38, 5,429.89 and 1,154.35 is: 1,731.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.38 : 5,429.89 = 1,154.35 : x
  2. Step 2: Convert to fraction form
    3,619.38/5,429.89 = 1,154.35/x
  3. Step 3: Cross multiply
    3,619.38x = 5,429.89 × 1,154.35
  4. Step 4: Simplify right side
    3,619.38x = 6,267,966.37
  5. Step 5: Solve for x
    x = 6,267,966.37/3,619.38
  6. Step 6: Final answer
    x = 1,731.78

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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.