Home / 3,887.80-5,365.24-2,119.52

Finding the Fourth Proportional to 3,887.80, 5,365.24 and 2,119.52

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Solution

The fourth proportional to 3,887.80, 5,365.24 and 2,119.52 is: 2,924.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.80 : 5,365.24 = 2,119.52 : x
  2. Step 2: Convert to fraction form
    3,887.80/5,365.24 = 2,119.52/x
  3. Step 3: Cross multiply
    3,887.80x = 5,365.24 × 2,119.52
  4. Step 4: Simplify right side
    3,887.80x = 11,371,733.48
  5. Step 5: Solve for x
    x = 11,371,733.48/3,887.80
  6. Step 6: Final answer
    x = 2,924.98

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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.