Home / 4,120.50-6,165.25-2,890.31

Finding the Fourth Proportional to 4,120.50, 6,165.25 and 2,890.31

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Solution

The fourth proportional to 4,120.50, 6,165.25 and 2,890.31 is: 4,324.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.50 : 6,165.25 = 2,890.31 : x
  2. Step 2: Convert to fraction form
    4,120.50/6,165.25 = 2,890.31/x
  3. Step 3: Cross multiply
    4,120.50x = 6,165.25 × 2,890.31
  4. Step 4: Simplify right side
    4,120.50x = 17,819,483.73
  5. Step 5: Solve for x
    x = 17,819,483.73/4,120.50
  6. Step 6: Final answer
    x = 4,324.59

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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.