Home / 2,842.35-4,262.58-1,380.57

Finding the Fourth Proportional to 2,842.35, 4,262.58 and 1,380.57

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Solution

The fourth proportional to 2,842.35, 4,262.58 and 1,380.57 is: 2,070.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842.35 : 4,262.58 = 1,380.57 : x
  2. Step 2: Convert to fraction form
    2,842.35/4,262.58 = 1,380.57/x
  3. Step 3: Cross multiply
    2,842.35x = 4,262.58 × 1,380.57
  4. Step 4: Simplify right side
    2,842.35x = 5,884,790.07
  5. Step 5: Solve for x
    x = 5,884,790.07/2,842.35
  6. Step 6: Final answer
    x = 2,070.40

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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.