Home / 3,723.76-5,138.91-2,045.26

Finding the Fourth Proportional to 3,723.76, 5,138.91 and 2,045.26

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Solution

The fourth proportional to 3,723.76, 5,138.91 and 2,045.26 is: 2,822.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.76 : 5,138.91 = 2,045.26 : x
  2. Step 2: Convert to fraction form
    3,723.76/5,138.91 = 2,045.26/x
  3. Step 3: Cross multiply
    3,723.76x = 5,138.91 × 2,045.26
  4. Step 4: Simplify right side
    3,723.76x = 10,510,407.07
  5. Step 5: Solve for x
    x = 10,510,407.07/3,723.76
  6. Step 6: Final answer
    x = 2,822.53

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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.