Home / 3,630.21-5,008.24-2,135.76

Finding the Fourth Proportional to 3,630.21, 5,008.24 and 2,135.76

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Solution

The fourth proportional to 3,630.21, 5,008.24 and 2,135.76 is: 2,946.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.21 : 5,008.24 = 2,135.76 : x
  2. Step 2: Convert to fraction form
    3,630.21/5,008.24 = 2,135.76/x
  3. Step 3: Cross multiply
    3,630.21x = 5,008.24 × 2,135.76
  4. Step 4: Simplify right side
    3,630.21x = 10,696,398.66
  5. Step 5: Solve for x
    x = 10,696,398.66/3,630.21
  6. Step 6: Final answer
    x = 2,946.50

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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.