Home / 3,789-5,228.46-2,110.12

Finding the Fourth Proportional to 3,789, 5,228.46 and 2,110.12

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Solution

The fourth proportional to 3,789, 5,228.46 and 2,110.12 is: 2,911.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789 : 5,228.46 = 2,110.12 : x
  2. Step 2: Convert to fraction form
    3,789/5,228.46 = 2,110.12/x
  3. Step 3: Cross multiply
    3,789x = 5,228.46 × 2,110.12
  4. Step 4: Simplify right side
    3,789x = 11,032,678.02
  5. Step 5: Solve for x
    x = 11,032,678.02/3,789
  6. Step 6: Final answer
    x = 2,911.77

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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.