Home / 2,740.67-4,105.10-1,858.33

Finding the Fourth Proportional to 2,740.67, 4,105.10 and 1,858.33

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Solution

The fourth proportional to 2,740.67, 4,105.10 and 1,858.33 is: 2,783.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.67 : 4,105.10 = 1,858.33 : x
  2. Step 2: Convert to fraction form
    2,740.67/4,105.10 = 1,858.33/x
  3. Step 3: Cross multiply
    2,740.67x = 4,105.10 × 1,858.33
  4. Step 4: Simplify right side
    2,740.67x = 7,628,617.90
  5. Step 5: Solve for x
    x = 7,628,617.90/2,740.67
  6. Step 6: Final answer
    x = 2,783.49

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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.