Home / 3,415.75-4,712.07-2,087.14

Finding the Fourth Proportional to 3,415.75, 4,712.07 and 2,087.14

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Solution

The fourth proportional to 3,415.75, 4,712.07 and 2,087.14 is: 2,879.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.75 : 4,712.07 = 2,087.14 : x
  2. Step 2: Convert to fraction form
    3,415.75/4,712.07 = 2,087.14/x
  3. Step 3: Cross multiply
    3,415.75x = 4,712.07 × 2,087.14
  4. Step 4: Simplify right side
    3,415.75x = 9,834,749.78
  5. Step 5: Solve for x
    x = 9,834,749.78/3,415.75
  6. Step 6: Final answer
    x = 2,879.24

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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.