Home / 5,920.16-8,169.83-3,231.40

Finding the Fourth Proportional to 5,920.16, 8,169.83 and 3,231.40

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Solution

The fourth proportional to 5,920.16, 8,169.83 and 3,231.40 is: 4,459.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.16 : 8,169.83 = 3,231.40 : x
  2. Step 2: Convert to fraction form
    5,920.16/8,169.83 = 3,231.40/x
  3. Step 3: Cross multiply
    5,920.16x = 8,169.83 × 3,231.40
  4. Step 4: Simplify right side
    5,920.16x = 26,399,996.74
  5. Step 5: Solve for x
    x = 26,399,996.74/5,920.16
  6. Step 6: Final answer
    x = 4,459.34

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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.