Home / 1,824.50-2,517.40-1,078.49

Finding the Fourth Proportional to 1,824.50, 2,517.40 and 1,078.49

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Solution

The fourth proportional to 1,824.50, 2,517.40 and 1,078.49 is: 1,488.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,824.50 : 2,517.40 = 1,078.49 : x
  2. Step 2: Convert to fraction form
    1,824.50/2,517.40 = 1,078.49/x
  3. Step 3: Cross multiply
    1,824.50x = 2,517.40 × 1,078.49
  4. Step 4: Simplify right side
    1,824.50x = 2,714,990.73
  5. Step 5: Solve for x
    x = 2,714,990.73/1,824.50
  6. Step 6: Final answer
    x = 1,488.07

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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.