Home / 2,845.83-3,928.11-1,851.24

Finding the Fourth Proportional to 2,845.83, 3,928.11 and 1,851.24

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Solution

The fourth proportional to 2,845.83, 3,928.11 and 1,851.24 is: 2,555.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.83 : 3,928.11 = 1,851.24 : x
  2. Step 2: Convert to fraction form
    2,845.83/3,928.11 = 1,851.24/x
  3. Step 3: Cross multiply
    2,845.83x = 3,928.11 × 1,851.24
  4. Step 4: Simplify right side
    2,845.83x = 7,271,874.36
  5. Step 5: Solve for x
    x = 7,271,874.36/2,845.83
  6. Step 6: Final answer
    x = 2,555.27

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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.