Home / 7,341.76-10,131.69-3,984.60

Finding the Fourth Proportional to 7,341.76, 10,131.69 and 3,984.60

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Solution

The fourth proportional to 7,341.76, 10,131.69 and 3,984.60 is: 5,498.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,341.76 : 10,131.69 = 3,984.60 : x
  2. Step 2: Convert to fraction form
    7,341.76/10,131.69 = 3,984.60/x
  3. Step 3: Cross multiply
    7,341.76x = 10,131.69 × 3,984.60
  4. Step 4: Simplify right side
    7,341.76x = 40,370,731.97
  5. Step 5: Solve for x
    x = 40,370,731.97/7,341.76
  6. Step 6: Final answer
    x = 5,498.78

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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.