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Finding the Fourth Proportional to 2,658.35, 3,986.18 and 1,548.13

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Solution

The fourth proportional to 2,658.35, 3,986.18 and 1,548.13 is: 2,321.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.35 : 3,986.18 = 1,548.13 : x
  2. Step 2: Convert to fraction form
    2,658.35/3,986.18 = 1,548.13/x
  3. Step 3: Cross multiply
    2,658.35x = 3,986.18 × 1,548.13
  4. Step 4: Simplify right side
    2,658.35x = 6,171,129.13
  5. Step 5: Solve for x
    x = 6,171,129.13/2,658.35
  6. Step 6: Final answer
    x = 2,321.42

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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.