Home / 1,824.80-2,731.80-1,630.40

Finding the Fourth Proportional to 1,824.80, 2,731.80 and 1,630.40

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Solution

The fourth proportional to 1,824.80, 2,731.80 and 1,630.40 is: 2,440.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,824.80 : 2,731.80 = 1,630.40 : x
  2. Step 2: Convert to fraction form
    1,824.80/2,731.80 = 1,630.40/x
  3. Step 3: Cross multiply
    1,824.80x = 2,731.80 × 1,630.40
  4. Step 4: Simplify right side
    1,824.80x = 4,453,926.72
  5. Step 5: Solve for x
    x = 4,453,926.72/1,824.80
  6. Step 6: Final answer
    x = 2,440.78

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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.