Home / 2,634.24-3,945.36-1,857.72

Finding the Fourth Proportional to 2,634.24, 3,945.36 and 1,857.72

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Solution

The fourth proportional to 2,634.24, 3,945.36 and 1,857.72 is: 2,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,634.24 : 3,945.36 = 1,857.72 : x
  2. Step 2: Convert to fraction form
    2,634.24/3,945.36 = 1,857.72/x
  3. Step 3: Cross multiply
    2,634.24x = 3,945.36 × 1,857.72
  4. Step 4: Simplify right side
    2,634.24x = 7,329,374.18
  5. Step 5: Solve for x
    x = 7,329,374.18/2,634.24
  6. Step 6: Final answer
    x = 2,782.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.