Home / 7,758.10-11,636-2,826.59

Finding the Fourth Proportional to 7,758.10, 11,636 and 2,826.59

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Solution

The fourth proportional to 7,758.10, 11,636 and 2,826.59 is: 4,239.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,758.10 : 11,636 = 2,826.59 : x
  2. Step 2: Convert to fraction form
    7,758.10/11,636 = 2,826.59/x
  3. Step 3: Cross multiply
    7,758.10x = 11,636 × 2,826.59
  4. Step 4: Simplify right side
    7,758.10x = 32,890,201.24
  5. Step 5: Solve for x
    x = 32,890,201.24/7,758.10
  6. Step 6: Final answer
    x = 4,239.47

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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.