Home / 1,820.51-2,512.20-1,074.19

Finding the Fourth Proportional to 1,820.51, 2,512.20 and 1,074.19

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Solution

The fourth proportional to 1,820.51, 2,512.20 and 1,074.19 is: 1,482.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.51 : 2,512.20 = 1,074.19 : x
  2. Step 2: Convert to fraction form
    1,820.51/2,512.20 = 1,074.19/x
  3. Step 3: Cross multiply
    1,820.51x = 2,512.20 × 1,074.19
  4. Step 4: Simplify right side
    1,820.51x = 2,698,589.90
  5. Step 5: Solve for x
    x = 2,698,589.90/1,820.51
  6. Step 6: Final answer
    x = 1,482.33

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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.