Home / 7,538.09-10,402.91-4,180.70

Finding the Fourth Proportional to 7,538.09, 10,402.91 and 4,180.70

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Solution

The fourth proportional to 7,538.09, 10,402.91 and 4,180.70 is: 5,769.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.09 : 10,402.91 = 4,180.70 : x
  2. Step 2: Convert to fraction form
    7,538.09/10,402.91 = 4,180.70/x
  3. Step 3: Cross multiply
    7,538.09x = 10,402.91 × 4,180.70
  4. Step 4: Simplify right side
    7,538.09x = 43,491,466.62
  5. Step 5: Solve for x
    x = 43,491,466.62/7,538.09
  6. Step 6: Final answer
    x = 5,769.56

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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.