Home / 3,457.20-4,768.51-2,131.63

Finding the Fourth Proportional to 3,457.20, 4,768.51 and 2,131.63

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Solution

The fourth proportional to 3,457.20, 4,768.51 and 2,131.63 is: 2,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.20 : 4,768.51 = 2,131.63 : x
  2. Step 2: Convert to fraction form
    3,457.20/4,768.51 = 2,131.63/x
  3. Step 3: Cross multiply
    3,457.20x = 4,768.51 × 2,131.63
  4. Step 4: Simplify right side
    3,457.20x = 10,164,698.97
  5. Step 5: Solve for x
    x = 10,164,698.97/3,457.20
  6. Step 6: Final answer
    x = 2,940.15

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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.