Home / 5,623.16-8,434.96-2,112.80

Finding the Fourth Proportional to 5,623.16, 8,434.96 and 2,112.80

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Solution

The fourth proportional to 5,623.16, 8,434.96 and 2,112.80 is: 3,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,623.16 : 8,434.96 = 2,112.80 : x
  2. Step 2: Convert to fraction form
    5,623.16/8,434.96 = 2,112.80/x
  3. Step 3: Cross multiply
    5,623.16x = 8,434.96 × 2,112.80
  4. Step 4: Simplify right side
    5,623.16x = 17,821,383.49
  5. Step 5: Solve for x
    x = 17,821,383.49/5,623.16
  6. Step 6: Final answer
    x = 3,169.28

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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.