Home / 5,809.06-8,018.96-3,923.20

Finding the Fourth Proportional to 5,809.06, 8,018.96 and 3,923.20

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Solution

The fourth proportional to 5,809.06, 8,018.96 and 3,923.20 is: 5,415.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,809.06 : 8,018.96 = 3,923.20 : x
  2. Step 2: Convert to fraction form
    5,809.06/8,018.96 = 3,923.20/x
  3. Step 3: Cross multiply
    5,809.06x = 8,018.96 × 3,923.20
  4. Step 4: Simplify right side
    5,809.06x = 31,459,983.87
  5. Step 5: Solve for x
    x = 31,459,983.87/5,809.06
  6. Step 6: Final answer
    x = 5,415.68

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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.