Home / 4,660.93-6,431.56-2,891.89

Finding the Fourth Proportional to 4,660.93, 6,431.56 and 2,891.89

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Solution

The fourth proportional to 4,660.93, 6,431.56 and 2,891.89 is: 3,990.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,660.93 : 6,431.56 = 2,891.89 : x
  2. Step 2: Convert to fraction form
    4,660.93/6,431.56 = 2,891.89/x
  3. Step 3: Cross multiply
    4,660.93x = 6,431.56 × 2,891.89
  4. Step 4: Simplify right side
    4,660.93x = 18,599,364.05
  5. Step 5: Solve for x
    x = 18,599,364.05/4,660.93
  6. Step 6: Final answer
    x = 3,990.48

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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.