Home / 2,803.55-3,868.76-1,625

Finding the Fourth Proportional to 2,803.55, 3,868.76 and 1,625

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Solution

The fourth proportional to 2,803.55, 3,868.76 and 1,625 is: 2,242.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.55 : 3,868.76 = 1,625 : x
  2. Step 2: Convert to fraction form
    2,803.55/3,868.76 = 1,625/x
  3. Step 3: Cross multiply
    2,803.55x = 3,868.76 × 1,625
  4. Step 4: Simplify right side
    2,803.55x = 6,286,726.88
  5. Step 5: Solve for x
    x = 6,286,726.88/2,803.55
  6. Step 6: Final answer
    x = 2,242.42

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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.