Home / 3,457.86-4,772.16-2,131.62

Finding the Fourth Proportional to 3,457.86, 4,772.16 and 2,131.62

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Solution

The fourth proportional to 3,457.86, 4,772.16 and 2,131.62 is: 2,941.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.86 : 4,772.16 = 2,131.62 : x
  2. Step 2: Convert to fraction form
    3,457.86/4,772.16 = 2,131.62/x
  3. Step 3: Cross multiply
    3,457.86x = 4,772.16 × 2,131.62
  4. Step 4: Simplify right side
    3,457.86x = 10,172,431.70
  5. Step 5: Solve for x
    x = 10,172,431.70/3,457.86
  6. Step 6: Final answer
    x = 2,941.83

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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.