Home / 1,850.63-2,553.88-1,187.49

Finding the Fourth Proportional to 1,850.63, 2,553.88 and 1,187.49

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Solution

The fourth proportional to 1,850.63, 2,553.88 and 1,187.49 is: 1,638.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.63 : 2,553.88 = 1,187.49 : x
  2. Step 2: Convert to fraction form
    1,850.63/2,553.88 = 1,187.49/x
  3. Step 3: Cross multiply
    1,850.63x = 2,553.88 × 1,187.49
  4. Step 4: Simplify right side
    1,850.63x = 3,032,706.96
  5. Step 5: Solve for x
    x = 3,032,706.96/1,850.63
  6. Step 6: Final answer
    x = 1,638.74

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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.