Home / 3,288.79-4,538.63-1,891.54

Finding the Fourth Proportional to 3,288.79, 4,538.63 and 1,891.54

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Solution

The fourth proportional to 3,288.79, 4,538.63 and 1,891.54 is: 2,610.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.79 : 4,538.63 = 1,891.54 : x
  2. Step 2: Convert to fraction form
    3,288.79/4,538.63 = 1,891.54/x
  3. Step 3: Cross multiply
    3,288.79x = 4,538.63 × 1,891.54
  4. Step 4: Simplify right side
    3,288.79x = 8,584,968.04
  5. Step 5: Solve for x
    x = 8,584,968.04/3,288.79
  6. Step 6: Final answer
    x = 2,610.38

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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.