Home / 3,308.80-4,562.08-2,128

Finding the Fourth Proportional to 3,308.80, 4,562.08 and 2,128

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Solution

The fourth proportional to 3,308.80, 4,562.08 and 2,128 is: 2,934.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.80 : 4,562.08 = 2,128 : x
  2. Step 2: Convert to fraction form
    3,308.80/4,562.08 = 2,128/x
  3. Step 3: Cross multiply
    3,308.80x = 4,562.08 × 2,128
  4. Step 4: Simplify right side
    3,308.80x = 9,708,106.24
  5. Step 5: Solve for x
    x = 9,708,106.24/3,308.80
  6. Step 6: Final answer
    x = 2,934.03

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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.