Home / 2,643.45-3,966.99-2,622.95

Finding the Fourth Proportional to 2,643.45, 3,966.99 and 2,622.95

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Solution

The fourth proportional to 2,643.45, 3,966.99 and 2,622.95 is: 3,936.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.45 : 3,966.99 = 2,622.95 : x
  2. Step 2: Convert to fraction form
    2,643.45/3,966.99 = 2,622.95/x
  3. Step 3: Cross multiply
    2,643.45x = 3,966.99 × 2,622.95
  4. Step 4: Simplify right side
    2,643.45x = 10,405,206.42
  5. Step 5: Solve for x
    x = 10,405,206.42/2,643.45
  6. Step 6: Final answer
    x = 3,936.23

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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.