Home / 3,723.87-5,139.21-2,307.83

Finding the Fourth Proportional to 3,723.87, 5,139.21 and 2,307.83

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Solution

The fourth proportional to 3,723.87, 5,139.21 and 2,307.83 is: 3,184.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.87 : 5,139.21 = 2,307.83 : x
  2. Step 2: Convert to fraction form
    3,723.87/5,139.21 = 2,307.83/x
  3. Step 3: Cross multiply
    3,723.87x = 5,139.21 × 2,307.83
  4. Step 4: Simplify right side
    3,723.87x = 11,860,449.33
  5. Step 5: Solve for x
    x = 11,860,449.33/3,723.87
  6. Step 6: Final answer
    x = 3,184.98

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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.