Home / 4,186.86-5,779.13-2,419.71

Finding the Fourth Proportional to 4,186.86, 5,779.13 and 2,419.71

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Solution

The fourth proportional to 4,186.86, 5,779.13 and 2,419.71 is: 3,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,186.86 : 5,779.13 = 2,419.71 : x
  2. Step 2: Convert to fraction form
    4,186.86/5,779.13 = 2,419.71/x
  3. Step 3: Cross multiply
    4,186.86x = 5,779.13 × 2,419.71
  4. Step 4: Simplify right side
    4,186.86x = 13,983,824.70
  5. Step 5: Solve for x
    x = 13,983,824.70/4,186.86
  6. Step 6: Final answer
    x = 3,339.93

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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.