Home / 3,645.12-5,467.24-1,012.80

Finding the Fourth Proportional to 3,645.12, 5,467.24 and 1,012.80

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Solution

The fourth proportional to 3,645.12, 5,467.24 and 1,012.80 is: 1,519.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.12 : 5,467.24 = 1,012.80 : x
  2. Step 2: Convert to fraction form
    3,645.12/5,467.24 = 1,012.80/x
  3. Step 3: Cross multiply
    3,645.12x = 5,467.24 × 1,012.80
  4. Step 4: Simplify right side
    3,645.12x = 5,537,220.67
  5. Step 5: Solve for x
    x = 5,537,220.67/3,645.12
  6. Step 6: Final answer
    x = 1,519.08

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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.