Home / 7,530.78-11,291.72-3,087.12

Finding the Fourth Proportional to 7,530.78, 11,291.72 and 3,087.12

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Solution

The fourth proportional to 7,530.78, 11,291.72 and 3,087.12 is: 4,628.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,530.78 : 11,291.72 = 3,087.12 : x
  2. Step 2: Convert to fraction form
    7,530.78/11,291.72 = 3,087.12/x
  3. Step 3: Cross multiply
    7,530.78x = 11,291.72 × 3,087.12
  4. Step 4: Simplify right side
    7,530.78x = 34,858,894.65
  5. Step 5: Solve for x
    x = 34,858,894.65/7,530.78
  6. Step 6: Final answer
    x = 4,628.86

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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.