Home / 2,571.17-3,857.77-1,090.71

Finding the Fourth Proportional to 2,571.17, 3,857.77 and 1,090.71

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Solution

The fourth proportional to 2,571.17, 3,857.77 and 1,090.71 is: 1,636.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.17 : 3,857.77 = 1,090.71 : x
  2. Step 2: Convert to fraction form
    2,571.17/3,857.77 = 1,090.71/x
  3. Step 3: Cross multiply
    2,571.17x = 3,857.77 × 1,090.71
  4. Step 4: Simplify right side
    2,571.17x = 4,207,708.32
  5. Step 5: Solve for x
    x = 4,207,708.32/2,571.17
  6. Step 6: Final answer
    x = 1,636.50

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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.