Home / 1,850.03-2,553.40-1,187.72

Finding the Fourth Proportional to 1,850.03, 2,553.40 and 1,187.72

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Solution

The fourth proportional to 1,850.03, 2,553.40 and 1,187.72 is: 1,639.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.03 : 2,553.40 = 1,187.72 : x
  2. Step 2: Convert to fraction form
    1,850.03/2,553.40 = 1,187.72/x
  3. Step 3: Cross multiply
    1,850.03x = 2,553.40 × 1,187.72
  4. Step 4: Simplify right side
    1,850.03x = 3,032,732.12
  5. Step 5: Solve for x
    x = 3,032,732.12/1,850.03
  6. Step 6: Final answer
    x = 1,639.29

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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.