Home / 3,723.95-5,139.10-2,045.50

Finding the Fourth Proportional to 3,723.95, 5,139.10 and 2,045.50

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Solution

The fourth proportional to 3,723.95, 5,139.10 and 2,045.50 is: 2,822.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.95 : 5,139.10 = 2,045.50 : x
  2. Step 2: Convert to fraction form
    3,723.95/5,139.10 = 2,045.50/x
  3. Step 3: Cross multiply
    3,723.95x = 5,139.10 × 2,045.50
  4. Step 4: Simplify right side
    3,723.95x = 10,512,029.05
  5. Step 5: Solve for x
    x = 10,512,029.05/3,723.95
  6. Step 6: Final answer
    x = 2,822.82

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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.