Home / 3,639.51-5,458.13-2,321.39

Finding the Fourth Proportional to 3,639.51, 5,458.13 and 2,321.39

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Solution

The fourth proportional to 3,639.51, 5,458.13 and 2,321.39 is: 3,481.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.51 : 5,458.13 = 2,321.39 : x
  2. Step 2: Convert to fraction form
    3,639.51/5,458.13 = 2,321.39/x
  3. Step 3: Cross multiply
    3,639.51x = 5,458.13 × 2,321.39
  4. Step 4: Simplify right side
    3,639.51x = 12,670,409.50
  5. Step 5: Solve for x
    x = 12,670,409.50/3,639.51
  6. Step 6: Final answer
    x = 3,481.35

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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.