Home / 3,123.84-4,310.73-1,726.50

Finding the Fourth Proportional to 3,123.84, 4,310.73 and 1,726.50

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Solution

The fourth proportional to 3,123.84, 4,310.73 and 1,726.50 is: 2,382.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.84 : 4,310.73 = 1,726.50 : x
  2. Step 2: Convert to fraction form
    3,123.84/4,310.73 = 1,726.50/x
  3. Step 3: Cross multiply
    3,123.84x = 4,310.73 × 1,726.50
  4. Step 4: Simplify right side
    3,123.84x = 7,442,475.35
  5. Step 5: Solve for x
    x = 7,442,475.35/3,123.84
  6. Step 6: Final answer
    x = 2,382.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.