Home / 3,123.10-4,310.07-1,796.77

Finding the Fourth Proportional to 3,123.10, 4,310.07 and 1,796.77

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Solution

The fourth proportional to 3,123.10, 4,310.07 and 1,796.77 is: 2,479.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.10 : 4,310.07 = 1,796.77 : x
  2. Step 2: Convert to fraction form
    3,123.10/4,310.07 = 1,796.77/x
  3. Step 3: Cross multiply
    3,123.10x = 4,310.07 × 1,796.77
  4. Step 4: Simplify right side
    3,123.10x = 7,744,195.49
  5. Step 5: Solve for x
    x = 7,744,195.49/3,123.10
  6. Step 6: Final answer
    x = 2,479.65

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1.5x scale

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.