Home / 4,279.18-6,419.67-2,431.15

Finding the Fourth Proportional to 4,279.18, 6,419.67 and 2,431.15

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Solution

The fourth proportional to 4,279.18, 6,419.67 and 2,431.15 is: 3,647.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.18 : 6,419.67 = 2,431.15 : x
  2. Step 2: Convert to fraction form
    4,279.18/6,419.67 = 2,431.15/x
  3. Step 3: Cross multiply
    4,279.18x = 6,419.67 × 2,431.15
  4. Step 4: Simplify right side
    4,279.18x = 15,607,180.72
  5. Step 5: Solve for x
    x = 15,607,180.72/4,279.18
  6. Step 6: Final answer
    x = 3,647.24

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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.