Home / 2,851.40-3,932.10-1,941.32

Finding the Fourth Proportional to 2,851.40, 3,932.10 and 1,941.32

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Solution

The fourth proportional to 2,851.40, 3,932.10 and 1,941.32 is: 2,677.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.40 : 3,932.10 = 1,941.32 : x
  2. Step 2: Convert to fraction form
    2,851.40/3,932.10 = 1,941.32/x
  3. Step 3: Cross multiply
    2,851.40x = 3,932.10 × 1,941.32
  4. Step 4: Simplify right side
    2,851.40x = 7,633,464.37
  5. Step 5: Solve for x
    x = 7,633,464.37/2,851.40
  6. Step 6: Final answer
    x = 2,677.09

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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.