Home / 3,114.85-4,297.74-1,855.10

Finding the Fourth Proportional to 3,114.85, 4,297.74 and 1,855.10

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Solution

The fourth proportional to 3,114.85, 4,297.74 and 1,855.10 is: 2,559.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.85 : 4,297.74 = 1,855.10 : x
  2. Step 2: Convert to fraction form
    3,114.85/4,297.74 = 1,855.10/x
  3. Step 3: Cross multiply
    3,114.85x = 4,297.74 × 1,855.10
  4. Step 4: Simplify right side
    3,114.85x = 7,972,709.03
  5. Step 5: Solve for x
    x = 7,972,709.03/3,114.85
  6. Step 6: Final answer
    x = 2,559.58

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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.