Home / 3,031.98-4,185.76-2,279.94

Finding the Fourth Proportional to 3,031.98, 4,185.76 and 2,279.94

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Solution

The fourth proportional to 3,031.98, 4,185.76 and 2,279.94 is: 3,147.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.98 : 4,185.76 = 2,279.94 : x
  2. Step 2: Convert to fraction form
    3,031.98/4,185.76 = 2,279.94/x
  3. Step 3: Cross multiply
    3,031.98x = 4,185.76 × 2,279.94
  4. Step 4: Simplify right side
    3,031.98x = 9,543,281.65
  5. Step 5: Solve for x
    x = 9,543,281.65/3,031.98
  6. Step 6: Final answer
    x = 3,147.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.