Home / 3,110.74-4,291.59-2,166.28

Finding the Fourth Proportional to 3,110.74, 4,291.59 and 2,166.28

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Solution

The fourth proportional to 3,110.74, 4,291.59 and 2,166.28 is: 2,988.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.74 : 4,291.59 = 2,166.28 : x
  2. Step 2: Convert to fraction form
    3,110.74/4,291.59 = 2,166.28/x
  3. Step 3: Cross multiply
    3,110.74x = 4,291.59 × 2,166.28
  4. Step 4: Simplify right side
    3,110.74x = 9,296,785.59
  5. Step 5: Solve for x
    x = 9,296,785.59/3,110.74
  6. Step 6: Final answer
    x = 2,988.61

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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.