Home / 3,376.74-4,659.78-2,118.47

Finding the Fourth Proportional to 3,376.74, 4,659.78 and 2,118.47

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Solution

The fourth proportional to 3,376.74, 4,659.78 and 2,118.47 is: 2,923.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,376.74 : 4,659.78 = 2,118.47 : x
  2. Step 2: Convert to fraction form
    3,376.74/4,659.78 = 2,118.47/x
  3. Step 3: Cross multiply
    3,376.74x = 4,659.78 × 2,118.47
  4. Step 4: Simplify right side
    3,376.74x = 9,871,593.54
  5. Step 5: Solve for x
    x = 9,871,593.54/3,376.74
  6. Step 6: Final answer
    x = 2,923.41

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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.