Home / 3,102.14-4,279.53-1,842.49

Finding the Fourth Proportional to 3,102.14, 4,279.53 and 1,842.49

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Solution

The fourth proportional to 3,102.14, 4,279.53 and 1,842.49 is: 2,541.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.14 : 4,279.53 = 1,842.49 : x
  2. Step 2: Convert to fraction form
    3,102.14/4,279.53 = 1,842.49/x
  3. Step 3: Cross multiply
    3,102.14x = 4,279.53 × 1,842.49
  4. Step 4: Simplify right side
    3,102.14x = 7,885,003.49
  5. Step 5: Solve for x
    x = 7,885,003.49/3,102.14
  6. Step 6: Final answer
    x = 2,541.79

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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.