Home / 3,100.88-4,279.56-1,703.60

Finding the Fourth Proportional to 3,100.88, 4,279.56 and 1,703.60

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Solution

The fourth proportional to 3,100.88, 4,279.56 and 1,703.60 is: 2,351.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.88 : 4,279.56 = 1,703.60 : x
  2. Step 2: Convert to fraction form
    3,100.88/4,279.56 = 1,703.60/x
  3. Step 3: Cross multiply
    3,100.88x = 4,279.56 × 1,703.60
  4. Step 4: Simplify right side
    3,100.88x = 7,290,658.42
  5. Step 5: Solve for x
    x = 7,290,658.42/3,100.88
  6. Step 6: Final answer
    x = 2,351.16

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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.