Home / 5,511.20-7,605.36-3,153.28

Finding the Fourth Proportional to 5,511.20, 7,605.36 and 3,153.28

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Solution

The fourth proportional to 5,511.20, 7,605.36 and 3,153.28 is: 4,351.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,511.20 : 7,605.36 = 3,153.28 : x
  2. Step 2: Convert to fraction form
    5,511.20/7,605.36 = 3,153.28/x
  3. Step 3: Cross multiply
    5,511.20x = 7,605.36 × 3,153.28
  4. Step 4: Simplify right side
    5,511.20x = 23,981,829.58
  5. Step 5: Solve for x
    x = 23,981,829.58/5,511.20
  6. Step 6: Final answer
    x = 4,351.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.