Home / 3,134.75-4,720.43-2,318.76

Finding the Fourth Proportional to 3,134.75, 4,720.43 and 2,318.76

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Solution

The fourth proportional to 3,134.75, 4,720.43 and 2,318.76 is: 3,491.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.75 : 4,720.43 = 2,318.76 : x
  2. Step 2: Convert to fraction form
    3,134.75/4,720.43 = 2,318.76/x
  3. Step 3: Cross multiply
    3,134.75x = 4,720.43 × 2,318.76
  4. Step 4: Simplify right side
    3,134.75x = 10,945,532.67
  5. Step 5: Solve for x
    x = 10,945,532.67/3,134.75
  6. Step 6: Final answer
    x = 3,491.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.