Home / 2,853.35-4,281.26-1,005.78

Finding the Fourth Proportional to 2,853.35, 4,281.26 and 1,005.78

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Solution

The fourth proportional to 2,853.35, 4,281.26 and 1,005.78 is: 1,509.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.35 : 4,281.26 = 1,005.78 : x
  2. Step 2: Convert to fraction form
    2,853.35/4,281.26 = 1,005.78/x
  3. Step 3: Cross multiply
    2,853.35x = 4,281.26 × 1,005.78
  4. Step 4: Simplify right side
    2,853.35x = 4,306,000.65
  5. Step 5: Solve for x
    x = 4,306,000.65/2,853.35
  6. Step 6: Final answer
    x = 1,509.11

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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.