Home / 6,939.72-10,409.60-2,555.28

Finding the Fourth Proportional to 6,939.72, 10,409.60 and 2,555.28

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Solution

The fourth proportional to 6,939.72, 10,409.60 and 2,555.28 is: 3,832.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.72 : 10,409.60 = 2,555.28 : x
  2. Step 2: Convert to fraction form
    6,939.72/10,409.60 = 2,555.28/x
  3. Step 3: Cross multiply
    6,939.72x = 10,409.60 × 2,555.28
  4. Step 4: Simplify right side
    6,939.72x = 26,599,442.69
  5. Step 5: Solve for x
    x = 26,599,442.69/6,939.72
  6. Step 6: Final answer
    x = 3,832.93

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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.