Home / 1,630.40-2,441.39-1,080.86

Finding the Fourth Proportional to 1,630.40, 2,441.39 and 1,080.86

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Solution

The fourth proportional to 1,630.40, 2,441.39 and 1,080.86 is: 1,618.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.40 : 2,441.39 = 1,080.86 : x
  2. Step 2: Convert to fraction form
    1,630.40/2,441.39 = 1,080.86/x
  3. Step 3: Cross multiply
    1,630.40x = 2,441.39 × 1,080.86
  4. Step 4: Simplify right side
    1,630.40x = 2,638,783.18
  5. Step 5: Solve for x
    x = 2,638,783.18/1,630.40
  6. Step 6: Final answer
    x = 1,618.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.