Home / 7,536.85-10,400.20-4,179.60

Finding the Fourth Proportional to 7,536.85, 10,400.20 and 4,179.60

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Solution

The fourth proportional to 7,536.85, 10,400.20 and 4,179.60 is: 5,767.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,536.85 : 10,400.20 = 4,179.60 : x
  2. Step 2: Convert to fraction form
    7,536.85/10,400.20 = 4,179.60/x
  3. Step 3: Cross multiply
    7,536.85x = 10,400.20 × 4,179.60
  4. Step 4: Simplify right side
    7,536.85x = 43,468,665.47
  5. Step 5: Solve for x
    x = 43,468,665.47/7,536.85
  6. Step 6: Final answer
    x = 5,767.49

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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.