Home / 6,414.09-9,620.51-3,129.45

Finding the Fourth Proportional to 6,414.09, 9,620.51 and 3,129.45

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Solution

The fourth proportional to 6,414.09, 9,620.51 and 3,129.45 is: 4,693.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,414.09 : 9,620.51 = 3,129.45 : x
  2. Step 2: Convert to fraction form
    6,414.09/9,620.51 = 3,129.45/x
  3. Step 3: Cross multiply
    6,414.09x = 9,620.51 × 3,129.45
  4. Step 4: Simplify right side
    6,414.09x = 30,106,889.37
  5. Step 5: Solve for x
    x = 30,106,889.37/6,414.09
  6. Step 6: Final answer
    x = 4,693.87

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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.