Home / 3,031.21-4,540.23-1,857.67

Finding the Fourth Proportional to 3,031.21, 4,540.23 and 1,857.67

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Solution

The fourth proportional to 3,031.21, 4,540.23 and 1,857.67 is: 2,782.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.21 : 4,540.23 = 1,857.67 : x
  2. Step 2: Convert to fraction form
    3,031.21/4,540.23 = 1,857.67/x
  3. Step 3: Cross multiply
    3,031.21x = 4,540.23 × 1,857.67
  4. Step 4: Simplify right side
    3,031.21x = 8,434,251.64
  5. Step 5: Solve for x
    x = 8,434,251.64/3,031.21
  6. Step 6: Final answer
    x = 2,782.47

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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.