Home / 2,765.51-3,821.25-2,210.55

Finding the Fourth Proportional to 2,765.51, 3,821.25 and 2,210.55

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Solution

The fourth proportional to 2,765.51, 3,821.25 and 2,210.55 is: 3,054.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.51 : 3,821.25 = 2,210.55 : x
  2. Step 2: Convert to fraction form
    2,765.51/3,821.25 = 2,210.55/x
  3. Step 3: Cross multiply
    2,765.51x = 3,821.25 × 2,210.55
  4. Step 4: Simplify right side
    2,765.51x = 8,447,053.13
  5. Step 5: Solve for x
    x = 8,447,053.13/2,765.51
  6. Step 6: Final answer
    x = 3,054.43

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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.