Home / 3,738.24-5,159.28-2,805.12

Finding the Fourth Proportional to 3,738.24, 5,159.28 and 2,805.12

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Solution

The fourth proportional to 3,738.24, 5,159.28 and 2,805.12 is: 3,871.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.24 : 5,159.28 = 2,805.12 : x
  2. Step 2: Convert to fraction form
    3,738.24/5,159.28 = 2,805.12/x
  3. Step 3: Cross multiply
    3,738.24x = 5,159.28 × 2,805.12
  4. Step 4: Simplify right side
    3,738.24x = 14,472,399.51
  5. Step 5: Solve for x
    x = 14,472,399.51/3,738.24
  6. Step 6: Final answer
    x = 3,871.45

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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.