Home / 2,825.45-4,238.14-877.66

Finding the Fourth Proportional to 2,825.45, 4,238.14 and 877.66

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Solution

The fourth proportional to 2,825.45, 4,238.14 and 877.66 is: 1,316.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.45 : 4,238.14 = 877.66 : x
  2. Step 2: Convert to fraction form
    2,825.45/4,238.14 = 877.66/x
  3. Step 3: Cross multiply
    2,825.45x = 4,238.14 × 877.66
  4. Step 4: Simplify right side
    2,825.45x = 3,719,645.95
  5. Step 5: Solve for x
    x = 3,719,645.95/2,825.45
  6. Step 6: Final answer
    x = 1,316.48

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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.