Home / 4,178.25-5,765.99-2,315.25

Finding the Fourth Proportional to 4,178.25, 5,765.99 and 2,315.25

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Solution

The fourth proportional to 4,178.25, 5,765.99 and 2,315.25 is: 3,195.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.25 : 5,765.99 = 2,315.25 : x
  2. Step 2: Convert to fraction form
    4,178.25/5,765.99 = 2,315.25/x
  3. Step 3: Cross multiply
    4,178.25x = 5,765.99 × 2,315.25
  4. Step 4: Simplify right side
    4,178.25x = 13,349,696.77
  5. Step 5: Solve for x
    x = 13,349,696.77/4,178.25
  6. Step 6: Final answer
    x = 3,195.05

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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.