Home / 7,375.41-10,178.64-4,189.28

Finding the Fourth Proportional to 7,375.41, 10,178.64 and 4,189.28

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Solution

The fourth proportional to 7,375.41, 10,178.64 and 4,189.28 is: 5,781.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,375.41 : 10,178.64 = 4,189.28 : x
  2. Step 2: Convert to fraction form
    7,375.41/10,178.64 = 4,189.28/x
  3. Step 3: Cross multiply
    7,375.41x = 10,178.64 × 4,189.28
  4. Step 4: Simplify right side
    7,375.41x = 42,641,137.06
  5. Step 5: Solve for x
    x = 42,641,137.06/7,375.41
  6. Step 6: Final answer
    x = 5,781.53

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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.