Home / 6,821.04-10,231.60-2,439.20

Finding the Fourth Proportional to 6,821.04, 10,231.60 and 2,439.20

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Solution

The fourth proportional to 6,821.04, 10,231.60 and 2,439.20 is: 3,658.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.04 : 10,231.60 = 2,439.20 : x
  2. Step 2: Convert to fraction form
    6,821.04/10,231.60 = 2,439.20/x
  3. Step 3: Cross multiply
    6,821.04x = 10,231.60 × 2,439.20
  4. Step 4: Simplify right side
    6,821.04x = 24,956,918.72
  5. Step 5: Solve for x
    x = 24,956,918.72/6,821.04
  6. Step 6: Final answer
    x = 3,658.81

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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.