Home / 3,561.77-5,338.86-1,808.09

Finding the Fourth Proportional to 3,561.77, 5,338.86 and 1,808.09

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Solution

The fourth proportional to 3,561.77, 5,338.86 and 1,808.09 is: 2,710.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.77 : 5,338.86 = 1,808.09 : x
  2. Step 2: Convert to fraction form
    3,561.77/5,338.86 = 1,808.09/x
  3. Step 3: Cross multiply
    3,561.77x = 5,338.86 × 1,808.09
  4. Step 4: Simplify right side
    3,561.77x = 9,653,139.38
  5. Step 5: Solve for x
    x = 9,653,139.38/3,561.77
  6. Step 6: Final answer
    x = 2,710.21

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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.