Home / 7,137.12-10,704.60-2,456.40

Finding the Fourth Proportional to 7,137.12, 10,704.60 and 2,456.40

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Solution

The fourth proportional to 7,137.12, 10,704.60 and 2,456.40 is: 3,684.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.12 : 10,704.60 = 2,456.40 : x
  2. Step 2: Convert to fraction form
    7,137.12/10,704.60 = 2,456.40/x
  3. Step 3: Cross multiply
    7,137.12x = 10,704.60 × 2,456.40
  4. Step 4: Simplify right side
    7,137.12x = 26,294,779.44
  5. Step 5: Solve for x
    x = 26,294,779.44/7,137.12
  6. Step 6: Final answer
    x = 3,684.23

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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.