Home / 5,678.02-8,514.60-1,979.56

Finding the Fourth Proportional to 5,678.02, 8,514.60 and 1,979.56

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Solution

The fourth proportional to 5,678.02, 8,514.60 and 1,979.56 is: 2,968.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.02 : 8,514.60 = 1,979.56 : x
  2. Step 2: Convert to fraction form
    5,678.02/8,514.60 = 1,979.56/x
  3. Step 3: Cross multiply
    5,678.02x = 8,514.60 × 1,979.56
  4. Step 4: Simplify right side
    5,678.02x = 16,855,161.58
  5. Step 5: Solve for x
    x = 16,855,161.58/5,678.02
  6. Step 6: Final answer
    x = 2,968.49

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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.