Home / 3,018.84-4,168.62-2,920.92

Finding the Fourth Proportional to 3,018.84, 4,168.62 and 2,920.92

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Solution

The fourth proportional to 3,018.84, 4,168.62 and 2,920.92 is: 4,033.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.84 : 4,168.62 = 2,920.92 : x
  2. Step 2: Convert to fraction form
    3,018.84/4,168.62 = 2,920.92/x
  3. Step 3: Cross multiply
    3,018.84x = 4,168.62 × 2,920.92
  4. Step 4: Simplify right side
    3,018.84x = 12,176,205.53
  5. Step 5: Solve for x
    x = 12,176,205.53/3,018.84
  6. Step 6: Final answer
    x = 4,033.41

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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.