Home / 2,286.53-3,154.88-1,390.07

Finding the Fourth Proportional to 2,286.53, 3,154.88 and 1,390.07

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Solution

The fourth proportional to 2,286.53, 3,154.88 and 1,390.07 is: 1,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.53 : 3,154.88 = 1,390.07 : x
  2. Step 2: Convert to fraction form
    2,286.53/3,154.88 = 1,390.07/x
  3. Step 3: Cross multiply
    2,286.53x = 3,154.88 × 1,390.07
  4. Step 4: Simplify right side
    2,286.53x = 4,385,481.32
  5. Step 5: Solve for x
    x = 4,385,481.32/2,286.53
  6. Step 6: Final answer
    x = 1,917.97

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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.