Home / 3,887.83-5,365.34-2,119.50

Finding the Fourth Proportional to 3,887.83, 5,365.34 and 2,119.50

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Solution

The fourth proportional to 3,887.83, 5,365.34 and 2,119.50 is: 2,924.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.83 : 5,365.34 = 2,119.50 : x
  2. Step 2: Convert to fraction form
    3,887.83/5,365.34 = 2,119.50/x
  3. Step 3: Cross multiply
    3,887.83x = 5,365.34 × 2,119.50
  4. Step 4: Simplify right side
    3,887.83x = 11,371,838.13
  5. Step 5: Solve for x
    x = 11,371,838.13/3,887.83
  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.