Home / 3,520.22-5,281.96-1,328.77

Finding the Fourth Proportional to 3,520.22, 5,281.96 and 1,328.77

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Solution

The fourth proportional to 3,520.22, 5,281.96 and 1,328.77 is: 1,993.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.22 : 5,281.96 = 1,328.77 : x
  2. Step 2: Convert to fraction form
    3,520.22/5,281.96 = 1,328.77/x
  3. Step 3: Cross multiply
    3,520.22x = 5,281.96 × 1,328.77
  4. Step 4: Simplify right side
    3,520.22x = 7,018,493.46
  5. Step 5: Solve for x
    x = 7,018,493.46/3,520.22
  6. Step 6: Final answer
    x = 1,993.76

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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.