Home / 3,619.93-5,429.80-1,154.90

Finding the Fourth Proportional to 3,619.93, 5,429.80 and 1,154.90

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Solution

The fourth proportional to 3,619.93, 5,429.80 and 1,154.90 is: 1,732.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.93 : 5,429.80 = 1,154.90 : x
  2. Step 2: Convert to fraction form
    3,619.93/5,429.80 = 1,154.90/x
  3. Step 3: Cross multiply
    3,619.93x = 5,429.80 × 1,154.90
  4. Step 4: Simplify right side
    3,619.93x = 6,270,876.02
  5. Step 5: Solve for x
    x = 6,270,876.02/3,619.93
  6. Step 6: Final answer
    x = 1,732.32

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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.