Home / 2,125.60-2,933.25-1,181.45

Finding the Fourth Proportional to 2,125.60, 2,933.25 and 1,181.45

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Solution

The fourth proportional to 2,125.60, 2,933.25 and 1,181.45 is: 1,630.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.60 : 2,933.25 = 1,181.45 : x
  2. Step 2: Convert to fraction form
    2,125.60/2,933.25 = 1,181.45/x
  3. Step 3: Cross multiply
    2,125.60x = 2,933.25 × 1,181.45
  4. Step 4: Simplify right side
    2,125.60x = 3,465,488.21
  5. Step 5: Solve for x
    x = 3,465,488.21/2,125.60
  6. Step 6: Final answer
    x = 1,630.36

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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.