Home / 3,789.06-5,228.10-2,391

Finding the Fourth Proportional to 3,789.06, 5,228.10 and 2,391

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Solution

The fourth proportional to 3,789.06, 5,228.10 and 2,391 is: 3,299.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.06 : 5,228.10 = 2,391 : x
  2. Step 2: Convert to fraction form
    3,789.06/5,228.10 = 2,391/x
  3. Step 3: Cross multiply
    3,789.06x = 5,228.10 × 2,391
  4. Step 4: Simplify right side
    3,789.06x = 12,500,387.10
  5. Step 5: Solve for x
    x = 12,500,387.10/3,789.06
  6. Step 6: Final answer
    x = 3,299.07

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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.