Home / 3,100.86-4,279.26-1,703.64

Finding the Fourth Proportional to 3,100.86, 4,279.26 and 1,703.64

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Solution

The fourth proportional to 3,100.86, 4,279.26 and 1,703.64 is: 2,351.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.86 : 4,279.26 = 1,703.64 : x
  2. Step 2: Convert to fraction form
    3,100.86/4,279.26 = 1,703.64/x
  3. Step 3: Cross multiply
    3,100.86x = 4,279.26 × 1,703.64
  4. Step 4: Simplify right side
    3,100.86x = 7,290,318.51
  5. Step 5: Solve for x
    x = 7,290,318.51/3,100.86
  6. Step 6: Final answer
    x = 2,351.06

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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.