Home / 3,826.05-5,279.89-2,124.65

Finding the Fourth Proportional to 3,826.05, 5,279.89 and 2,124.65

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Solution

The fourth proportional to 3,826.05, 5,279.89 and 2,124.65 is: 2,931.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826.05 : 5,279.89 = 2,124.65 : x
  2. Step 2: Convert to fraction form
    3,826.05/5,279.89 = 2,124.65/x
  3. Step 3: Cross multiply
    3,826.05x = 5,279.89 × 2,124.65
  4. Step 4: Simplify right side
    3,826.05x = 11,217,918.29
  5. Step 5: Solve for x
    x = 11,217,918.29/3,826.05
  6. Step 6: Final answer
    x = 2,931.98

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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.