Home / 2,125.35-2,933.55-1,286.10

Finding the Fourth Proportional to 2,125.35, 2,933.55 and 1,286.10

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Solution

The fourth proportional to 2,125.35, 2,933.55 and 1,286.10 is: 1,775.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.35 : 2,933.55 = 1,286.10 : x
  2. Step 2: Convert to fraction form
    2,125.35/2,933.55 = 1,286.10/x
  3. Step 3: Cross multiply
    2,125.35x = 2,933.55 × 1,286.10
  4. Step 4: Simplify right side
    2,125.35x = 3,772,838.66
  5. Step 5: Solve for x
    x = 3,772,838.66/2,125.35
  6. Step 6: Final answer
    x = 1,775.16

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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.