Home / 3,539.39-4,885.47-2,419.92

Finding the Fourth Proportional to 3,539.39, 4,885.47 and 2,419.92

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Solution

The fourth proportional to 3,539.39, 4,885.47 and 2,419.92 is: 3,340.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.39 : 4,885.47 = 2,419.92 : x
  2. Step 2: Convert to fraction form
    3,539.39/4,885.47 = 2,419.92/x
  3. Step 3: Cross multiply
    3,539.39x = 4,885.47 × 2,419.92
  4. Step 4: Simplify right side
    3,539.39x = 11,822,446.56
  5. Step 5: Solve for x
    x = 11,822,446.56/3,539.39
  6. Step 6: Final answer
    x = 3,340.25

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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.