Home / 7,325.91-10,109.70-3,968.69

Finding the Fourth Proportional to 7,325.91, 10,109.70 and 3,968.69

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Solution

The fourth proportional to 7,325.91, 10,109.70 and 3,968.69 is: 5,476.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,325.91 : 10,109.70 = 3,968.69 : x
  2. Step 2: Convert to fraction form
    7,325.91/10,109.70 = 3,968.69/x
  3. Step 3: Cross multiply
    7,325.91x = 10,109.70 × 3,968.69
  4. Step 4: Simplify right side
    7,325.91x = 40,122,214.74
  5. Step 5: Solve for x
    x = 40,122,214.74/7,325.91
  6. Step 6: Final answer
    x = 5,476.76

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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.