Home / 5,676.08-8,514.80-1,979.60

Finding the Fourth Proportional to 5,676.08, 8,514.80 and 1,979.60

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Solution

The fourth proportional to 5,676.08, 8,514.80 and 1,979.60 is: 2,969.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.08 : 8,514.80 = 1,979.60 : x
  2. Step 2: Convert to fraction form
    5,676.08/8,514.80 = 1,979.60/x
  3. Step 3: Cross multiply
    5,676.08x = 8,514.80 × 1,979.60
  4. Step 4: Simplify right side
    5,676.08x = 16,855,898.08
  5. Step 5: Solve for x
    x = 16,855,898.08/5,676.08
  6. Step 6: Final answer
    x = 2,969.64

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1.5x scale

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.