Home / 3,610.94-5,412.74-1,418.80

Finding the Fourth Proportional to 3,610.94, 5,412.74 and 1,418.80

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Solution

The fourth proportional to 3,610.94, 5,412.74 and 1,418.80 is: 2,126.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.94 : 5,412.74 = 1,418.80 : x
  2. Step 2: Convert to fraction form
    3,610.94/5,412.74 = 1,418.80/x
  3. Step 3: Cross multiply
    3,610.94x = 5,412.74 × 1,418.80
  4. Step 4: Simplify right side
    3,610.94x = 7,679,595.51
  5. Step 5: Solve for x
    x = 7,679,595.51/3,610.94
  6. Step 6: Final answer
    x = 2,126.76

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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.