Home / 1,397.45-1,918.95-1,250.03

Finding the Fourth Proportional to 1,397.45, 1,918.95 and 1,250.03

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Solution

The fourth proportional to 1,397.45, 1,918.95 and 1,250.03 is: 1,716.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397.45 : 1,918.95 = 1,250.03 : x
  2. Step 2: Convert to fraction form
    1,397.45/1,918.95 = 1,250.03/x
  3. Step 3: Cross multiply
    1,397.45x = 1,918.95 × 1,250.03
  4. Step 4: Simplify right side
    1,397.45x = 2,398,745.07
  5. Step 5: Solve for x
    x = 2,398,745.07/1,397.45
  6. Step 6: Final answer
    x = 1,716.52

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.