Home / 1,554.85-2,144.82-1,181.17

Finding the Fourth Proportional to 1,554.85, 2,144.82 and 1,181.17

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Solution

The fourth proportional to 1,554.85, 2,144.82 and 1,181.17 is: 1,629.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.85 : 2,144.82 = 1,181.17 : x
  2. Step 2: Convert to fraction form
    1,554.85/2,144.82 = 1,181.17/x
  3. Step 3: Cross multiply
    1,554.85x = 2,144.82 × 1,181.17
  4. Step 4: Simplify right side
    1,554.85x = 2,533,397.04
  5. Step 5: Solve for x
    x = 2,533,397.04/1,554.85
  6. Step 6: Final answer
    x = 1,629.35

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Double scale
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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.