Home / 5,418.13-8,123.25-3,658.77

Finding the Fourth Proportional to 5,418.13, 8,123.25 and 3,658.77

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Solution

The fourth proportional to 5,418.13, 8,123.25 and 3,658.77 is: 5,485.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.13 : 8,123.25 = 3,658.77 : x
  2. Step 2: Convert to fraction form
    5,418.13/8,123.25 = 3,658.77/x
  3. Step 3: Cross multiply
    5,418.13x = 8,123.25 × 3,658.77
  4. Step 4: Simplify right side
    5,418.13x = 29,721,101.69
  5. Step 5: Solve for x
    x = 29,721,101.69/5,418.13
  6. Step 6: Final answer
    x = 5,485.49

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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.