Home / 4,891.43-7,339.21-2,116.69

Finding the Fourth Proportional to 4,891.43, 7,339.21 and 2,116.69

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Solution

The fourth proportional to 4,891.43, 7,339.21 and 2,116.69 is: 3,175.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891.43 : 7,339.21 = 2,116.69 : x
  2. Step 2: Convert to fraction form
    4,891.43/7,339.21 = 2,116.69/x
  3. Step 3: Cross multiply
    4,891.43x = 7,339.21 × 2,116.69
  4. Step 4: Simplify right side
    4,891.43x = 15,534,808.78
  5. Step 5: Solve for x
    x = 15,534,808.78/4,891.43
  6. Step 6: Final answer
    x = 3,175.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.