Home / 7,538.60-10,402.52-4,180.64

Finding the Fourth Proportional to 7,538.60, 10,402.52 and 4,180.64

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Solution

The fourth proportional to 7,538.60, 10,402.52 and 4,180.64 is: 5,768.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.60 : 10,402.52 = 4,180.64 : x
  2. Step 2: Convert to fraction form
    7,538.60/10,402.52 = 4,180.64/x
  3. Step 3: Cross multiply
    7,538.60x = 10,402.52 × 4,180.64
  4. Step 4: Simplify right side
    7,538.60x = 43,489,118.30
  5. Step 5: Solve for x
    x = 43,489,118.30/7,538.60
  6. Step 6: Final answer
    x = 5,768.86

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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.