Home / 3,703.91-5,555.75-1,238.78

Finding the Fourth Proportional to 3,703.91, 5,555.75 and 1,238.78

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Solution

The fourth proportional to 3,703.91, 5,555.75 and 1,238.78 is: 1,858.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,703.91 : 5,555.75 = 1,238.78 : x
  2. Step 2: Convert to fraction form
    3,703.91/5,555.75 = 1,238.78/x
  3. Step 3: Cross multiply
    3,703.91x = 5,555.75 × 1,238.78
  4. Step 4: Simplify right side
    3,703.91x = 6,882,318.01
  5. Step 5: Solve for x
    x = 6,882,318.01/3,703.91
  6. Step 6: Final answer
    x = 1,858.12

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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.