Home / 3,630.41-5,009.88-2,138.39

Finding the Fourth Proportional to 3,630.41, 5,009.88 and 2,138.39

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Solution

The fourth proportional to 3,630.41, 5,009.88 and 2,138.39 is: 2,950.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.41 : 5,009.88 = 2,138.39 : x
  2. Step 2: Convert to fraction form
    3,630.41/5,009.88 = 2,138.39/x
  3. Step 3: Cross multiply
    3,630.41x = 5,009.88 × 2,138.39
  4. Step 4: Simplify right side
    3,630.41x = 10,713,077.29
  5. Step 5: Solve for x
    x = 10,713,077.29/3,630.41
  6. Step 6: Final answer
    x = 2,950.93

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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.