Home / 5,059.83-6,986.01-3,172.20

Finding the Fourth Proportional to 5,059.83, 6,986.01 and 3,172.20

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Solution

The fourth proportional to 5,059.83, 6,986.01 and 3,172.20 is: 4,379.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,059.83 : 6,986.01 = 3,172.20 : x
  2. Step 2: Convert to fraction form
    5,059.83/6,986.01 = 3,172.20/x
  3. Step 3: Cross multiply
    5,059.83x = 6,986.01 × 3,172.20
  4. Step 4: Simplify right side
    5,059.83x = 22,161,020.92
  5. Step 5: Solve for x
    x = 22,161,020.92/5,059.83
  6. Step 6: Final answer
    x = 4,379.80

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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.