Home / 3,887.49-5,364.77-2,119.11

Finding the Fourth Proportional to 3,887.49, 5,364.77 and 2,119.11

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Solution

The fourth proportional to 3,887.49, 5,364.77 and 2,119.11 is: 2,924.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.49 : 5,364.77 = 2,119.11 : x
  2. Step 2: Convert to fraction form
    3,887.49/5,364.77 = 2,119.11/x
  3. Step 3: Cross multiply
    3,887.49x = 5,364.77 × 2,119.11
  4. Step 4: Simplify right side
    3,887.49x = 11,368,527.16
  5. Step 5: Solve for x
    x = 11,368,527.16/3,887.49
  6. Step 6: Final answer
    x = 2,924.39

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Find fourth proportional to 1,943.75, 2,682.38 and 1,059.56
Half scale
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Double scale
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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.