Home / 4,187.51-5,778.75-2,299.12

Finding the Fourth Proportional to 4,187.51, 5,778.75 and 2,299.12

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Solution

The fourth proportional to 4,187.51, 5,778.75 and 2,299.12 is: 3,172.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.51 : 5,778.75 = 2,299.12 : x
  2. Step 2: Convert to fraction form
    4,187.51/5,778.75 = 2,299.12/x
  3. Step 3: Cross multiply
    4,187.51x = 5,778.75 × 2,299.12
  4. Step 4: Simplify right side
    4,187.51x = 13,286,039.70
  5. Step 5: Solve for x
    x = 13,286,039.70/4,187.51
  6. Step 6: Final answer
    x = 3,172.78

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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.