Home / 3,271.78-4,514.70-1,874.80

Finding the Fourth Proportional to 3,271.78, 4,514.70 and 1,874.80

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Solution

The fourth proportional to 3,271.78, 4,514.70 and 1,874.80 is: 2,587.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.78 : 4,514.70 = 1,874.80 : x
  2. Step 2: Convert to fraction form
    3,271.78/4,514.70 = 1,874.80/x
  3. Step 3: Cross multiply
    3,271.78x = 4,514.70 × 1,874.80
  4. Step 4: Simplify right side
    3,271.78x = 8,464,159.56
  5. Step 5: Solve for x
    x = 8,464,159.56/3,271.78
  6. Step 6: Final answer
    x = 2,587.02

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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.