Home / 3,995.87-5,515.02-2,505.07

Finding the Fourth Proportional to 3,995.87, 5,515.02 and 2,505.07

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Solution

The fourth proportional to 3,995.87, 5,515.02 and 2,505.07 is: 3,457.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.87 : 5,515.02 = 2,505.07 : x
  2. Step 2: Convert to fraction form
    3,995.87/5,515.02 = 2,505.07/x
  3. Step 3: Cross multiply
    3,995.87x = 5,515.02 × 2,505.07
  4. Step 4: Simplify right side
    3,995.87x = 13,815,497.36
  5. Step 5: Solve for x
    x = 13,815,497.36/3,995.87
  6. Step 6: Final answer
    x = 3,457.44

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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.