Home / 4,123.78-6,185.95-1,658.60

Finding the Fourth Proportional to 4,123.78, 6,185.95 and 1,658.60

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Solution

The fourth proportional to 4,123.78, 6,185.95 and 1,658.60 is: 2,488.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123.78 : 6,185.95 = 1,658.60 : x
  2. Step 2: Convert to fraction form
    4,123.78/6,185.95 = 1,658.60/x
  3. Step 3: Cross multiply
    4,123.78x = 6,185.95 × 1,658.60
  4. Step 4: Simplify right side
    4,123.78x = 10,260,016.67
  5. Step 5: Solve for x
    x = 10,260,016.67/4,123.78
  6. Step 6: Final answer
    x = 2,488.01

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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.