Home / 3,887.77-5,364.96-2,119.27

Finding the Fourth Proportional to 3,887.77, 5,364.96 and 2,119.27

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Solution

The fourth proportional to 3,887.77, 5,364.96 and 2,119.27 is: 2,924.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.77 : 5,364.96 = 2,119.27 : x
  2. Step 2: Convert to fraction form
    3,887.77/5,364.96 = 2,119.27/x
  3. Step 3: Cross multiply
    3,887.77x = 5,364.96 × 2,119.27
  4. Step 4: Simplify right side
    3,887.77x = 11,369,798.78
  5. Step 5: Solve for x
    x = 11,369,798.78/3,887.77
  6. Step 6: Final answer
    x = 2,924.50

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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.