Home / 5,490.14-8,233.16-1,979.20

Finding the Fourth Proportional to 5,490.14, 8,233.16 and 1,979.20

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Solution

The fourth proportional to 5,490.14, 8,233.16 and 1,979.20 is: 2,968.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.14 : 8,233.16 = 1,979.20 : x
  2. Step 2: Convert to fraction form
    5,490.14/8,233.16 = 1,979.20/x
  3. Step 3: Cross multiply
    5,490.14x = 8,233.16 × 1,979.20
  4. Step 4: Simplify right side
    5,490.14x = 16,295,070.27
  5. Step 5: Solve for x
    x = 16,295,070.27/5,490.14
  6. Step 6: Final answer
    x = 2,968.06

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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.