Home / 6,145.42-9,218.12-1,986.04

Finding the Fourth Proportional to 6,145.42, 9,218.12 and 1,986.04

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Solution

The fourth proportional to 6,145.42, 9,218.12 and 1,986.04 is: 2,979.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.42 : 9,218.12 = 1,986.04 : x
  2. Step 2: Convert to fraction form
    6,145.42/9,218.12 = 1,986.04/x
  3. Step 3: Cross multiply
    6,145.42x = 9,218.12 × 1,986.04
  4. Step 4: Simplify right side
    6,145.42x = 18,307,555.04
  5. Step 5: Solve for x
    x = 18,307,555.04/6,145.42
  6. Step 6: Final answer
    x = 2,979.06

Related Problems

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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.