Home / 7,390.20-11,087.10-3,007.28

Finding the Fourth Proportional to 7,390.20, 11,087.10 and 3,007.28

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Solution

The fourth proportional to 7,390.20, 11,087.10 and 3,007.28 is: 4,511.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.20 : 11,087.10 = 3,007.28 : x
  2. Step 2: Convert to fraction form
    7,390.20/11,087.10 = 3,007.28/x
  3. Step 3: Cross multiply
    7,390.20x = 11,087.10 × 3,007.28
  4. Step 4: Simplify right side
    7,390.20x = 33,342,014.09
  5. Step 5: Solve for x
    x = 33,342,014.09/7,390.20
  6. Step 6: Final answer
    x = 4,511.65

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1.5x scale

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.