Home / 4,380.57-6,045.74-2,891.58

Finding the Fourth Proportional to 4,380.57, 6,045.74 and 2,891.58

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Solution

The fourth proportional to 4,380.57, 6,045.74 and 2,891.58 is: 3,990.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,380.57 : 6,045.74 = 2,891.58 : x
  2. Step 2: Convert to fraction form
    4,380.57/6,045.74 = 2,891.58/x
  3. Step 3: Cross multiply
    4,380.57x = 6,045.74 × 2,891.58
  4. Step 4: Simplify right side
    4,380.57x = 17,481,740.87
  5. Step 5: Solve for x
    x = 17,481,740.87/4,380.57
  6. Step 6: Final answer
    x = 3,990.75

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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.