Home / 3,138.45-4,705.07-2,448.18

Finding the Fourth Proportional to 3,138.45, 4,705.07 and 2,448.18

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Solution

The fourth proportional to 3,138.45, 4,705.07 and 2,448.18 is: 3,670.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.45 : 4,705.07 = 2,448.18 : x
  2. Step 2: Convert to fraction form
    3,138.45/4,705.07 = 2,448.18/x
  3. Step 3: Cross multiply
    3,138.45x = 4,705.07 × 2,448.18
  4. Step 4: Simplify right side
    3,138.45x = 11,518,846.03
  5. Step 5: Solve for x
    x = 11,518,846.03/3,138.45
  6. Step 6: Final answer
    x = 3,670.23

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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.