Home / 7,341.78-10,131.66-3,984.69

Finding the Fourth Proportional to 7,341.78, 10,131.66 and 3,984.69

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Solution

The fourth proportional to 7,341.78, 10,131.66 and 3,984.69 is: 5,498.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,341.78 : 10,131.66 = 3,984.69 : x
  2. Step 2: Convert to fraction form
    7,341.78/10,131.66 = 3,984.69/x
  3. Step 3: Cross multiply
    7,341.78x = 10,131.66 × 3,984.69
  4. Step 4: Simplify right side
    7,341.78x = 40,371,524.29
  5. Step 5: Solve for x
    x = 40,371,524.29/7,341.78
  6. Step 6: Final answer
    x = 5,498.87

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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.