Home / 5,678.23-8,514.26-1,979.47

Finding the Fourth Proportional to 5,678.23, 8,514.26 and 1,979.47

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Solution

The fourth proportional to 5,678.23, 8,514.26 and 1,979.47 is: 2,968.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.23 : 8,514.26 = 1,979.47 : x
  2. Step 2: Convert to fraction form
    5,678.23/8,514.26 = 1,979.47/x
  3. Step 3: Cross multiply
    5,678.23x = 8,514.26 × 1,979.47
  4. Step 4: Simplify right side
    5,678.23x = 16,853,691.06
  5. Step 5: Solve for x
    x = 16,853,691.06/5,678.23
  6. Step 6: Final answer
    x = 2,968.12

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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.