Home / 8,290.45-12,435.22-3,358.77

Finding the Fourth Proportional to 8,290.45, 12,435.22 and 3,358.77

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Solution

The fourth proportional to 8,290.45, 12,435.22 and 3,358.77 is: 5,037.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.45 : 12,435.22 = 3,358.77 : x
  2. Step 2: Convert to fraction form
    8,290.45/12,435.22 = 3,358.77/x
  3. Step 3: Cross multiply
    8,290.45x = 12,435.22 × 3,358.77
  4. Step 4: Simplify right side
    8,290.45x = 41,767,001.45
  5. Step 5: Solve for x
    x = 41,767,001.45/8,290.45
  6. Step 6: Final answer
    x = 5,037.96

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1.5x scale

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.