Home / 3,400.38-4,686.21-2,338.47

Finding the Fourth Proportional to 3,400.38, 4,686.21 and 2,338.47

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Solution

The fourth proportional to 3,400.38, 4,686.21 and 2,338.47 is: 3,222.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.38 : 4,686.21 = 2,338.47 : x
  2. Step 2: Convert to fraction form
    3,400.38/4,686.21 = 2,338.47/x
  3. Step 3: Cross multiply
    3,400.38x = 4,686.21 × 2,338.47
  4. Step 4: Simplify right side
    3,400.38x = 10,958,561.50
  5. Step 5: Solve for x
    x = 10,958,561.50/3,400.38
  6. Step 6: Final answer
    x = 3,222.75

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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.