Home / 1,540.58-2,122.79-1,373.00

Finding the Fourth Proportional to 1,540.58, 2,122.79 and 1,373.00

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Solution

The fourth proportional to 1,540.58, 2,122.79 and 1,373.00 is: 1,891.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.58 : 2,122.79 = 1,373.00 : x
  2. Step 2: Convert to fraction form
    1,540.58/2,122.79 = 1,373.00/x
  3. Step 3: Cross multiply
    1,540.58x = 2,122.79 × 1,373.00
  4. Step 4: Simplify right side
    1,540.58x = 2,914,573.19
  5. Step 5: Solve for x
    x = 2,914,573.19/1,540.58
  6. Step 6: Final answer
    x = 1,891.87

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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.