Home / 3,887.34-5,364.45-2,119.02

Finding the Fourth Proportional to 3,887.34, 5,364.45 and 2,119.02

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Solution

The fourth proportional to 3,887.34, 5,364.45 and 2,119.02 is: 2,924.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.34 : 5,364.45 = 2,119.02 : x
  2. Step 2: Convert to fraction form
    3,887.34/5,364.45 = 2,119.02/x
  3. Step 3: Cross multiply
    3,887.34x = 5,364.45 × 2,119.02
  4. Step 4: Simplify right side
    3,887.34x = 11,367,376.84
  5. Step 5: Solve for x
    x = 11,367,376.84/3,887.34
  6. Step 6: Final answer
    x = 2,924.20

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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.