Home / 5,979.09-8,968.96-1,818.78

Finding the Fourth Proportional to 5,979.09, 8,968.96 and 1,818.78

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Solution

The fourth proportional to 5,979.09, 8,968.96 and 1,818.78 is: 2,728.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979.09 : 8,968.96 = 1,818.78 : x
  2. Step 2: Convert to fraction form
    5,979.09/8,968.96 = 1,818.78/x
  3. Step 3: Cross multiply
    5,979.09x = 8,968.96 × 1,818.78
  4. Step 4: Simplify right side
    5,979.09x = 16,312,565.07
  5. Step 5: Solve for x
    x = 16,312,565.07/5,979.09
  6. Step 6: Final answer
    x = 2,728.27

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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.