Home / 3,080.13-4,249.98-1,820.89

Finding the Fourth Proportional to 3,080.13, 4,249.98 and 1,820.89

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Solution

The fourth proportional to 3,080.13, 4,249.98 and 1,820.89 is: 2,512.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.13 : 4,249.98 = 1,820.89 : x
  2. Step 2: Convert to fraction form
    3,080.13/4,249.98 = 1,820.89/x
  3. Step 3: Cross multiply
    3,080.13x = 4,249.98 × 1,820.89
  4. Step 4: Simplify right side
    3,080.13x = 7,738,746.08
  5. Step 5: Solve for x
    x = 7,738,746.08/3,080.13
  6. Step 6: Final answer
    x = 2,512.47

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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.