Home / 3,723.72-5,138.40-2,045.13

Finding the Fourth Proportional to 3,723.72, 5,138.40 and 2,045.13

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Solution

The fourth proportional to 3,723.72, 5,138.40 and 2,045.13 is: 2,822.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.72 : 5,138.40 = 2,045.13 : x
  2. Step 2: Convert to fraction form
    3,723.72/5,138.40 = 2,045.13/x
  3. Step 3: Cross multiply
    3,723.72x = 5,138.40 × 2,045.13
  4. Step 4: Simplify right side
    3,723.72x = 10,508,670.30
  5. Step 5: Solve for x
    x = 10,508,670.30/3,723.72
  6. Step 6: Final answer
    x = 2,822.09

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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.