Home / 3,110.81-4,290.77-2,641.82

Finding the Fourth Proportional to 3,110.81, 4,290.77 and 2,641.82

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Solution

The fourth proportional to 3,110.81, 4,290.77 and 2,641.82 is: 3,643.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.81 : 4,290.77 = 2,641.82 : x
  2. Step 2: Convert to fraction form
    3,110.81/4,290.77 = 2,641.82/x
  3. Step 3: Cross multiply
    3,110.81x = 4,290.77 × 2,641.82
  4. Step 4: Simplify right side
    3,110.81x = 11,335,427.15
  5. Step 5: Solve for x
    x = 11,335,427.15/3,110.81
  6. Step 6: Final answer
    x = 3,643.89

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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.