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Finding the Fourth Proportional to 2,125.55, 2,933.03 and 1,181.18

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Solution

The fourth proportional to 2,125.55, 2,933.03 and 1,181.18 is: 1,629.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.55 : 2,933.03 = 1,181.18 : x
  2. Step 2: Convert to fraction form
    2,125.55/2,933.03 = 1,181.18/x
  3. Step 3: Cross multiply
    2,125.55x = 2,933.03 × 1,181.18
  4. Step 4: Simplify right side
    2,125.55x = 3,464,448.86
  5. Step 5: Solve for x
    x = 3,464,448.86/2,125.55
  6. Step 6: Final answer
    x = 1,629.91

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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.