Home / 3,209.40-4,429.62-2,090.52

Finding the Fourth Proportional to 3,209.40, 4,429.62 and 2,090.52

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Solution

The fourth proportional to 3,209.40, 4,429.62 and 2,090.52 is: 2,885.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.40 : 4,429.62 = 2,090.52 : x
  2. Step 2: Convert to fraction form
    3,209.40/4,429.62 = 2,090.52/x
  3. Step 3: Cross multiply
    3,209.40x = 4,429.62 × 2,090.52
  4. Step 4: Simplify right side
    3,209.40x = 9,260,209.20
  5. Step 5: Solve for x
    x = 9,260,209.20/3,209.40
  6. Step 6: Final answer
    x = 2,885.34

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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.