Home / 6,145.27-9,215.89-1,984.30

Finding the Fourth Proportional to 6,145.27, 9,215.89 and 1,984.30

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Solution

The fourth proportional to 6,145.27, 9,215.89 and 1,984.30 is: 2,975.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.27 : 9,215.89 = 1,984.30 : x
  2. Step 2: Convert to fraction form
    6,145.27/9,215.89 = 1,984.30/x
  3. Step 3: Cross multiply
    6,145.27x = 9,215.89 × 1,984.30
  4. Step 4: Simplify right side
    6,145.27x = 18,287,090.53
  5. Step 5: Solve for x
    x = 18,287,090.53/6,145.27
  6. Step 6: Final answer
    x = 2,975.80

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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.