Home / 3,406.05-4,698.81-2,146.23

Finding the Fourth Proportional to 3,406.05, 4,698.81 and 2,146.23

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Solution

The fourth proportional to 3,406.05, 4,698.81 and 2,146.23 is: 2,960.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.05 : 4,698.81 = 2,146.23 : x
  2. Step 2: Convert to fraction form
    3,406.05/4,698.81 = 2,146.23/x
  3. Step 3: Cross multiply
    3,406.05x = 4,698.81 × 2,146.23
  4. Step 4: Simplify right side
    3,406.05x = 10,084,726.99
  5. Step 5: Solve for x
    x = 10,084,726.99/3,406.05
  6. Step 6: Final answer
    x = 2,960.83

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Half scale
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Find fourth proportional to 3,407.05, 4,700.19 and 2,147.23
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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.