Home / 6,589.36-9,885.06-2,145.64

Finding the Fourth Proportional to 6,589.36, 9,885.06 and 2,145.64

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Solution

The fourth proportional to 6,589.36, 9,885.06 and 2,145.64 is: 3,218.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,589.36 : 9,885.06 = 2,145.64 : x
  2. Step 2: Convert to fraction form
    6,589.36/9,885.06 = 2,145.64/x
  3. Step 3: Cross multiply
    6,589.36x = 9,885.06 × 2,145.64
  4. Step 4: Simplify right side
    6,589.36x = 21,209,780.14
  5. Step 5: Solve for x
    x = 21,209,780.14/6,589.36
  6. Step 6: Final answer
    x = 3,218.79

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Half scale
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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.