Home / 3,662.40-5,054.16-2,169.78

Finding the Fourth Proportional to 3,662.40, 5,054.16 and 2,169.78

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Solution

The fourth proportional to 3,662.40, 5,054.16 and 2,169.78 is: 2,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,662.40 : 5,054.16 = 2,169.78 : x
  2. Step 2: Convert to fraction form
    3,662.40/5,054.16 = 2,169.78/x
  3. Step 3: Cross multiply
    3,662.40x = 5,054.16 × 2,169.78
  4. Step 4: Simplify right side
    3,662.40x = 10,966,415.28
  5. Step 5: Solve for x
    x = 10,966,415.28/3,662.40
  6. Step 6: Final answer
    x = 2,994.32

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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.