Home / 5,007.68-7,511.60-2,085.28

Finding the Fourth Proportional to 5,007.68, 7,511.60 and 2,085.28

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Solution

The fourth proportional to 5,007.68, 7,511.60 and 2,085.28 is: 3,127.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.68 : 7,511.60 = 2,085.28 : x
  2. Step 2: Convert to fraction form
    5,007.68/7,511.60 = 2,085.28/x
  3. Step 3: Cross multiply
    5,007.68x = 7,511.60 × 2,085.28
  4. Step 4: Simplify right side
    5,007.68x = 15,663,789.25
  5. Step 5: Solve for x
    x = 15,663,789.25/5,007.68
  6. Step 6: Final answer
    x = 3,127.95

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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.