Home / 1,601.35-2,209.08-1,379.92

Finding the Fourth Proportional to 1,601.35, 2,209.08 and 1,379.92

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Solution

The fourth proportional to 1,601.35, 2,209.08 and 1,379.92 is: 1,903.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,601.35 : 2,209.08 = 1,379.92 : x
  2. Step 2: Convert to fraction form
    1,601.35/2,209.08 = 1,379.92/x
  3. Step 3: Cross multiply
    1,601.35x = 2,209.08 × 1,379.92
  4. Step 4: Simplify right side
    1,601.35x = 3,048,353.67
  5. Step 5: Solve for x
    x = 3,048,353.67/1,601.35
  6. Step 6: Final answer
    x = 1,903.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.