Home / 3,979.06-5,489.50-2,300.14

Finding the Fourth Proportional to 3,979.06, 5,489.50 and 2,300.14

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Solution

The fourth proportional to 3,979.06, 5,489.50 and 2,300.14 is: 3,173.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.06 : 5,489.50 = 2,300.14 : x
  2. Step 2: Convert to fraction form
    3,979.06/5,489.50 = 2,300.14/x
  3. Step 3: Cross multiply
    3,979.06x = 5,489.50 × 2,300.14
  4. Step 4: Simplify right side
    3,979.06x = 12,626,618.53
  5. Step 5: Solve for x
    x = 12,626,618.53/3,979.06
  6. Step 6: Final answer
    x = 3,173.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.