Home / 7,628.52-11,440.86-2,431.72

Finding the Fourth Proportional to 7,628.52, 11,440.86 and 2,431.72

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Solution

The fourth proportional to 7,628.52, 11,440.86 and 2,431.72 is: 3,646.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.52 : 11,440.86 = 2,431.72 : x
  2. Step 2: Convert to fraction form
    7,628.52/11,440.86 = 2,431.72/x
  3. Step 3: Cross multiply
    7,628.52x = 11,440.86 × 2,431.72
  4. Step 4: Simplify right side
    7,628.52x = 27,820,968.08
  5. Step 5: Solve for x
    x = 27,820,968.08/7,628.52
  6. Step 6: Final answer
    x = 3,646.97

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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.