Home / 5,384.96-8,079.80-2,613.76

Finding the Fourth Proportional to 5,384.96, 8,079.80 and 2,613.76

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Solution

The fourth proportional to 5,384.96, 8,079.80 and 2,613.76 is: 3,921.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.96 : 8,079.80 = 2,613.76 : x
  2. Step 2: Convert to fraction form
    5,384.96/8,079.80 = 2,613.76/x
  3. Step 3: Cross multiply
    5,384.96x = 8,079.80 × 2,613.76
  4. Step 4: Simplify right side
    5,384.96x = 21,118,658.05
  5. Step 5: Solve for x
    x = 21,118,658.05/5,384.96
  6. Step 6: Final answer
    x = 3,921.79

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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.