Home / 6,630.12-9,149.64-3,645.98

Finding the Fourth Proportional to 6,630.12, 9,149.64 and 3,645.98

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Solution

The fourth proportional to 6,630.12, 9,149.64 and 3,645.98 is: 5,031.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.12 : 9,149.64 = 3,645.98 : x
  2. Step 2: Convert to fraction form
    6,630.12/9,149.64 = 3,645.98/x
  3. Step 3: Cross multiply
    6,630.12x = 9,149.64 × 3,645.98
  4. Step 4: Simplify right side
    6,630.12x = 33,359,379.34
  5. Step 5: Solve for x
    x = 33,359,379.34/6,630.12
  6. Step 6: Final answer
    x = 5,031.49

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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.