Home / 3,995.82-5,515.47-2,317.68

Finding the Fourth Proportional to 3,995.82, 5,515.47 and 2,317.68

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Solution

The fourth proportional to 3,995.82, 5,515.47 and 2,317.68 is: 3,199.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.82 : 5,515.47 = 2,317.68 : x
  2. Step 2: Convert to fraction form
    3,995.82/5,515.47 = 2,317.68/x
  3. Step 3: Cross multiply
    3,995.82x = 5,515.47 × 2,317.68
  4. Step 4: Simplify right side
    3,995.82x = 12,783,094.51
  5. Step 5: Solve for x
    x = 12,783,094.51/3,995.82
  6. Step 6: Final answer
    x = 3,199.12

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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.