Home / 2,625.77-3,932.50-1,891.76

Finding the Fourth Proportional to 2,625.77, 3,932.50 and 1,891.76

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Solution

The fourth proportional to 2,625.77, 3,932.50 and 1,891.76 is: 2,833.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.77 : 3,932.50 = 1,891.76 : x
  2. Step 2: Convert to fraction form
    2,625.77/3,932.50 = 1,891.76/x
  3. Step 3: Cross multiply
    2,625.77x = 3,932.50 × 1,891.76
  4. Step 4: Simplify right side
    2,625.77x = 7,439,325.36
  5. Step 5: Solve for x
    x = 7,439,325.36/2,625.77
  6. Step 6: Final answer
    x = 2,833.20

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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.