Home / 4,120.86-5,685.26-2,608.52

Finding the Fourth Proportional to 4,120.86, 5,685.26 and 2,608.52

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Solution

The fourth proportional to 4,120.86, 5,685.26 and 2,608.52 is: 3,598.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.86 : 5,685.26 = 2,608.52 : x
  2. Step 2: Convert to fraction form
    4,120.86/5,685.26 = 2,608.52/x
  3. Step 3: Cross multiply
    4,120.86x = 5,685.26 × 2,608.52
  4. Step 4: Simplify right side
    4,120.86x = 14,830,072.95
  5. Step 5: Solve for x
    x = 14,830,072.95/4,120.86
  6. Step 6: Final answer
    x = 3,598.78

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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.