Home / 5,481.36-8,223.39-1,585.71

Finding the Fourth Proportional to 5,481.36, 8,223.39 and 1,585.71

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Solution

The fourth proportional to 5,481.36, 8,223.39 and 1,585.71 is: 2,378.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.36 : 8,223.39 = 1,585.71 : x
  2. Step 2: Convert to fraction form
    5,481.36/8,223.39 = 1,585.71/x
  3. Step 3: Cross multiply
    5,481.36x = 8,223.39 × 1,585.71
  4. Step 4: Simplify right side
    5,481.36x = 13,039,911.76
  5. Step 5: Solve for x
    x = 13,039,911.76/5,481.36
  6. Step 6: Final answer
    x = 2,378.96

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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.