Home / 8,031.40-12,048.90-3,100.60

Finding the Fourth Proportional to 8,031.40, 12,048.90 and 3,100.60

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Solution

The fourth proportional to 8,031.40, 12,048.90 and 3,100.60 is: 4,651.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,031.40 : 12,048.90 = 3,100.60 : x
  2. Step 2: Convert to fraction form
    8,031.40/12,048.90 = 3,100.60/x
  3. Step 3: Cross multiply
    8,031.40x = 12,048.90 × 3,100.60
  4. Step 4: Simplify right side
    8,031.40x = 37,358,819.34
  5. Step 5: Solve for x
    x = 37,358,819.34/8,031.40
  6. Step 6: Final answer
    x = 4,651.59

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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.