Home / 3,101.88-4,278.24-2,052.12

Finding the Fourth Proportional to 3,101.88, 4,278.24 and 2,052.12

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Solution

The fourth proportional to 3,101.88, 4,278.24 and 2,052.12 is: 2,830.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.88 : 4,278.24 = 2,052.12 : x
  2. Step 2: Convert to fraction form
    3,101.88/4,278.24 = 2,052.12/x
  3. Step 3: Cross multiply
    3,101.88x = 4,278.24 × 2,052.12
  4. Step 4: Simplify right side
    3,101.88x = 8,779,461.87
  5. Step 5: Solve for x
    x = 8,779,461.87/3,101.88
  6. Step 6: Final answer
    x = 2,830.37

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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.