Home / 1,673.40-2,505.17-1,087.03

Finding the Fourth Proportional to 1,673.40, 2,505.17 and 1,087.03

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Solution

The fourth proportional to 1,673.40, 2,505.17 and 1,087.03 is: 1,627.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673.40 : 2,505.17 = 1,087.03 : x
  2. Step 2: Convert to fraction form
    1,673.40/2,505.17 = 1,087.03/x
  3. Step 3: Cross multiply
    1,673.40x = 2,505.17 × 1,087.03
  4. Step 4: Simplify right side
    1,673.40x = 2,723,191.40
  5. Step 5: Solve for x
    x = 2,723,191.40/1,673.40
  6. Step 6: Final answer
    x = 1,627.34

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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.