Home / 7,027.20-10,540.80-2,645.64

Finding the Fourth Proportional to 7,027.20, 10,540.80 and 2,645.64

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Solution

The fourth proportional to 7,027.20, 10,540.80 and 2,645.64 is: 3,968.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,027.20 : 10,540.80 = 2,645.64 : x
  2. Step 2: Convert to fraction form
    7,027.20/10,540.80 = 2,645.64/x
  3. Step 3: Cross multiply
    7,027.20x = 10,540.80 × 2,645.64
  4. Step 4: Simplify right side
    7,027.20x = 27,887,162.11
  5. Step 5: Solve for x
    x = 27,887,162.11/7,027.20
  6. Step 6: Final answer
    x = 3,968.46

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.