Home / 3,424.23-5,136.35-827.15

Finding the Fourth Proportional to 3,424.23, 5,136.35 and 827.15

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Solution

The fourth proportional to 3,424.23, 5,136.35 and 827.15 is: 1,240.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,424.23 : 5,136.35 = 827.15 : x
  2. Step 2: Convert to fraction form
    3,424.23/5,136.35 = 827.15/x
  3. Step 3: Cross multiply
    3,424.23x = 5,136.35 × 827.15
  4. Step 4: Simplify right side
    3,424.23x = 4,248,502.09
  5. Step 5: Solve for x
    x = 4,248,502.09/3,424.23
  6. Step 6: Final answer
    x = 1,240.72

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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.