Home / 2,855.76-4,281.66-1,396.08

Finding the Fourth Proportional to 2,855.76, 4,281.66 and 1,396.08

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Solution

The fourth proportional to 2,855.76, 4,281.66 and 1,396.08 is: 2,093.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.76 : 4,281.66 = 1,396.08 : x
  2. Step 2: Convert to fraction form
    2,855.76/4,281.66 = 1,396.08/x
  3. Step 3: Cross multiply
    2,855.76x = 4,281.66 × 1,396.08
  4. Step 4: Simplify right side
    2,855.76x = 5,977,539.89
  5. Step 5: Solve for x
    x = 5,977,539.89/2,855.76
  6. Step 6: Final answer
    x = 2,093.15

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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.