Home / 3,715.12-5,124.90-2,318.68

Finding the Fourth Proportional to 3,715.12, 5,124.90 and 2,318.68

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Solution

The fourth proportional to 3,715.12, 5,124.90 and 2,318.68 is: 3,198.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.12 : 5,124.90 = 2,318.68 : x
  2. Step 2: Convert to fraction form
    3,715.12/5,124.90 = 2,318.68/x
  3. Step 3: Cross multiply
    3,715.12x = 5,124.90 × 2,318.68
  4. Step 4: Simplify right side
    3,715.12x = 11,883,003.13
  5. Step 5: Solve for x
    x = 11,883,003.13/3,715.12
  6. Step 6: Final answer
    x = 3,198.55

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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.