Home / 3,887.65-5,364.98-2,119.25

Finding the Fourth Proportional to 3,887.65, 5,364.98 and 2,119.25

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Solution

The fourth proportional to 3,887.65, 5,364.98 and 2,119.25 is: 2,924.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.65 : 5,364.98 = 2,119.25 : x
  2. Step 2: Convert to fraction form
    3,887.65/5,364.98 = 2,119.25/x
  3. Step 3: Cross multiply
    3,887.65x = 5,364.98 × 2,119.25
  4. Step 4: Simplify right side
    3,887.65x = 11,369,733.87
  5. Step 5: Solve for x
    x = 11,369,733.87/3,887.65
  6. Step 6: Final answer
    x = 2,924.58

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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.