Home / 2,286.55-3,155.97-1,342.45

Finding the Fourth Proportional to 2,286.55, 3,155.97 and 1,342.45

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Solution

The fourth proportional to 2,286.55, 3,155.97 and 1,342.45 is: 1,852.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.55 : 3,155.97 = 1,342.45 : x
  2. Step 2: Convert to fraction form
    2,286.55/3,155.97 = 1,342.45/x
  3. Step 3: Cross multiply
    2,286.55x = 3,155.97 × 1,342.45
  4. Step 4: Simplify right side
    2,286.55x = 4,236,731.93
  5. Step 5: Solve for x
    x = 4,236,731.93/2,286.55
  6. Step 6: Final answer
    x = 1,852.89

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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.