Home / 7,511.82-11,263.95-3,128.10

Finding the Fourth Proportional to 7,511.82, 11,263.95 and 3,128.10

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Solution

The fourth proportional to 7,511.82, 11,263.95 and 3,128.10 is: 4,690.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,511.82 : 11,263.95 = 3,128.10 : x
  2. Step 2: Convert to fraction form
    7,511.82/11,263.95 = 3,128.10/x
  3. Step 3: Cross multiply
    7,511.82x = 11,263.95 × 3,128.10
  4. Step 4: Simplify right side
    7,511.82x = 35,234,762.00
  5. Step 5: Solve for x
    x = 35,234,762.00/7,511.82
  6. Step 6: Final answer
    x = 4,690.58

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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.