Home / 2,850.19-3,932.35-1,855.10

Finding the Fourth Proportional to 2,850.19, 3,932.35 and 1,855.10

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Solution

The fourth proportional to 2,850.19, 3,932.35 and 1,855.10 is: 2,559.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.19 : 3,932.35 = 1,855.10 : x
  2. Step 2: Convert to fraction form
    2,850.19/3,932.35 = 1,855.10/x
  3. Step 3: Cross multiply
    2,850.19x = 3,932.35 × 1,855.10
  4. Step 4: Simplify right side
    2,850.19x = 7,294,907.68
  5. Step 5: Solve for x
    x = 7,294,907.68/2,850.19
  6. Step 6: Final answer
    x = 2,559.45

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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.