Home / 4,120.31-6,179.63-1,347.06

Finding the Fourth Proportional to 4,120.31, 6,179.63 and 1,347.06

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Solution

The fourth proportional to 4,120.31, 6,179.63 and 1,347.06 is: 2,020.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.31 : 6,179.63 = 1,347.06 : x
  2. Step 2: Convert to fraction form
    4,120.31/6,179.63 = 1,347.06/x
  3. Step 3: Cross multiply
    4,120.31x = 6,179.63 × 1,347.06
  4. Step 4: Simplify right side
    4,120.31x = 8,324,325.65
  5. Step 5: Solve for x
    x = 8,324,325.65/4,120.31
  6. Step 6: Final answer
    x = 2,020.32

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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.