Home / 3,813.83-5,263.17-2,135.51

Finding the Fourth Proportional to 3,813.83, 5,263.17 and 2,135.51

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Solution

The fourth proportional to 3,813.83, 5,263.17 and 2,135.51 is: 2,947.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.83 : 5,263.17 = 2,135.51 : x
  2. Step 2: Convert to fraction form
    3,813.83/5,263.17 = 2,135.51/x
  3. Step 3: Cross multiply
    3,813.83x = 5,263.17 × 2,135.51
  4. Step 4: Simplify right side
    3,813.83x = 11,239,552.17
  5. Step 5: Solve for x
    x = 11,239,552.17/3,813.83
  6. Step 6: Final answer
    x = 2,947.06

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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.