Home / 2,818.34-4,226.30-1,085.75

Finding the Fourth Proportional to 2,818.34, 4,226.30 and 1,085.75

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Solution

The fourth proportional to 2,818.34, 4,226.30 and 1,085.75 is: 1,628.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.34 : 4,226.30 = 1,085.75 : x
  2. Step 2: Convert to fraction form
    2,818.34/4,226.30 = 1,085.75/x
  3. Step 3: Cross multiply
    2,818.34x = 4,226.30 × 1,085.75
  4. Step 4: Simplify right side
    2,818.34x = 4,588,699.80
  5. Step 5: Solve for x
    x = 4,588,699.80/2,818.34
  6. Step 6: Final answer
    x = 1,628.16

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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.