Home / 2,842.12-4,263.07-1,380.88

Finding the Fourth Proportional to 2,842.12, 4,263.07 and 1,380.88

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Solution

The fourth proportional to 2,842.12, 4,263.07 and 1,380.88 is: 2,071.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842.12 : 4,263.07 = 1,380.88 : x
  2. Step 2: Convert to fraction form
    2,842.12/4,263.07 = 1,380.88/x
  3. Step 3: Cross multiply
    2,842.12x = 4,263.07 × 1,380.88
  4. Step 4: Simplify right side
    2,842.12x = 5,886,788.10
  5. Step 5: Solve for x
    x = 5,886,788.10/2,842.12
  6. Step 6: Final answer
    x = 2,071.27

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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.