Home / 3,288.52-4,538.12-2,109.80

Finding the Fourth Proportional to 3,288.52, 4,538.12 and 2,109.80

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Solution

The fourth proportional to 3,288.52, 4,538.12 and 2,109.80 is: 2,911.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.52 : 4,538.12 = 2,109.80 : x
  2. Step 2: Convert to fraction form
    3,288.52/4,538.12 = 2,109.80/x
  3. Step 3: Cross multiply
    3,288.52x = 4,538.12 × 2,109.80
  4. Step 4: Simplify right side
    3,288.52x = 9,574,525.58
  5. Step 5: Solve for x
    x = 9,574,525.58/3,288.52
  6. Step 6: Final answer
    x = 2,911.50

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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.