Home / 3,610.20-5,415.48-1,012.80

Finding the Fourth Proportional to 3,610.20, 5,415.48 and 1,012.80

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Solution

The fourth proportional to 3,610.20, 5,415.48 and 1,012.80 is: 1,519.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.20 : 5,415.48 = 1,012.80 : x
  2. Step 2: Convert to fraction form
    3,610.20/5,415.48 = 1,012.80/x
  3. Step 3: Cross multiply
    3,610.20x = 5,415.48 × 1,012.80
  4. Step 4: Simplify right side
    3,610.20x = 5,484,798.14
  5. Step 5: Solve for x
    x = 5,484,798.14/3,610.20
  6. Step 6: Final answer
    x = 1,519.25

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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.