Home / 3,110.51-4,665.77-2,920.43

Finding the Fourth Proportional to 3,110.51, 4,665.77 and 2,920.43

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Solution

The fourth proportional to 3,110.51, 4,665.77 and 2,920.43 is: 4,380.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.51 : 4,665.77 = 2,920.43 : x
  2. Step 2: Convert to fraction form
    3,110.51/4,665.77 = 2,920.43/x
  3. Step 3: Cross multiply
    3,110.51x = 4,665.77 × 2,920.43
  4. Step 4: Simplify right side
    3,110.51x = 13,626,054.68
  5. Step 5: Solve for x
    x = 13,626,054.68/3,110.51
  6. Step 6: Final answer
    x = 4,380.65

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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.