Home / 3,721.51-5,135.75-2,043.08

Finding the Fourth Proportional to 3,721.51, 5,135.75 and 2,043.08

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Solution

The fourth proportional to 3,721.51, 5,135.75 and 2,043.08 is: 2,819.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.51 : 5,135.75 = 2,043.08 : x
  2. Step 2: Convert to fraction form
    3,721.51/5,135.75 = 2,043.08/x
  3. Step 3: Cross multiply
    3,721.51x = 5,135.75 × 2,043.08
  4. Step 4: Simplify right side
    3,721.51x = 10,492,739.14
  5. Step 5: Solve for x
    x = 10,492,739.14/3,721.51
  6. Step 6: Final answer
    x = 2,819.48

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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.