Home / 4,188.35-5,779.26-2,419.65

Finding the Fourth Proportional to 4,188.35, 5,779.26 and 2,419.65

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Solution

The fourth proportional to 4,188.35, 5,779.26 and 2,419.65 is: 3,338.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.35 : 5,779.26 = 2,419.65 : x
  2. Step 2: Convert to fraction form
    4,188.35/5,779.26 = 2,419.65/x
  3. Step 3: Cross multiply
    4,188.35x = 5,779.26 × 2,419.65
  4. Step 4: Simplify right side
    4,188.35x = 13,983,786.46
  5. Step 5: Solve for x
    x = 13,983,786.46/4,188.35
  6. Step 6: Final answer
    x = 3,338.74

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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.