Home / 3,636.47-5,018.80-2,219.86

Finding the Fourth Proportional to 3,636.47, 5,018.80 and 2,219.86

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Solution

The fourth proportional to 3,636.47, 5,018.80 and 2,219.86 is: 3,063.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.47 : 5,018.80 = 2,219.86 : x
  2. Step 2: Convert to fraction form
    3,636.47/5,018.80 = 2,219.86/x
  3. Step 3: Cross multiply
    3,636.47x = 5,018.80 × 2,219.86
  4. Step 4: Simplify right side
    3,636.47x = 11,141,033.37
  5. Step 5: Solve for x
    x = 11,141,033.37/3,636.47
  6. Step 6: Final answer
    x = 3,063.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.