Home / 2,888.20-3,986.36-2,415.27

Finding the Fourth Proportional to 2,888.20, 3,986.36 and 2,415.27

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Solution

The fourth proportional to 2,888.20, 3,986.36 and 2,415.27 is: 3,333.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.20 : 3,986.36 = 2,415.27 : x
  2. Step 2: Convert to fraction form
    2,888.20/3,986.36 = 2,415.27/x
  3. Step 3: Cross multiply
    2,888.20x = 3,986.36 × 2,415.27
  4. Step 4: Simplify right side
    2,888.20x = 9,628,146.28
  5. Step 5: Solve for x
    x = 9,628,146.28/2,888.20
  6. Step 6: Final answer
    x = 3,333.62

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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.