Home / 7,688.07-10,609.49-4,331.97

Finding the Fourth Proportional to 7,688.07, 10,609.49 and 4,331.97

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Solution

The fourth proportional to 7,688.07, 10,609.49 and 4,331.97 is: 5,978.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.07 : 10,609.49 = 4,331.97 : x
  2. Step 2: Convert to fraction form
    7,688.07/10,609.49 = 4,331.97/x
  3. Step 3: Cross multiply
    7,688.07x = 10,609.49 × 4,331.97
  4. Step 4: Simplify right side
    7,688.07x = 45,959,972.78
  5. Step 5: Solve for x
    x = 45,959,972.78/7,688.07
  6. Step 6: Final answer
    x = 5,978.09

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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.