Home / 3,018.84-4,172.97-2,518.56

Finding the Fourth Proportional to 3,018.84, 4,172.97 and 2,518.56

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Solution

The fourth proportional to 3,018.84, 4,172.97 and 2,518.56 is: 3,481.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.84 : 4,172.97 = 2,518.56 : x
  2. Step 2: Convert to fraction form
    3,018.84/4,172.97 = 2,518.56/x
  3. Step 3: Cross multiply
    3,018.84x = 4,172.97 × 2,518.56
  4. Step 4: Simplify right side
    3,018.84x = 10,509,875.32
  5. Step 5: Solve for x
    x = 10,509,875.32/3,018.84
  6. Step 6: Final answer
    x = 3,481.43

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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.