Home / 3,240.05-4,860.65-1,340.37

Finding the Fourth Proportional to 3,240.05, 4,860.65 and 1,340.37

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Solution

The fourth proportional to 3,240.05, 4,860.65 and 1,340.37 is: 2,010.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.05 : 4,860.65 = 1,340.37 : x
  2. Step 2: Convert to fraction form
    3,240.05/4,860.65 = 1,340.37/x
  3. Step 3: Cross multiply
    3,240.05x = 4,860.65 × 1,340.37
  4. Step 4: Simplify right side
    3,240.05x = 6,515,072.26
  5. Step 5: Solve for x
    x = 6,515,072.26/3,240.05
  6. Step 6: Final answer
    x = 2,010.79

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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.