Home / 3,405.84-4,697.36-2,209.52

Finding the Fourth Proportional to 3,405.84, 4,697.36 and 2,209.52

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Solution

The fourth proportional to 3,405.84, 4,697.36 and 2,209.52 is: 3,047.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.84 : 4,697.36 = 2,209.52 : x
  2. Step 2: Convert to fraction form
    3,405.84/4,697.36 = 2,209.52/x
  3. Step 3: Cross multiply
    3,405.84x = 4,697.36 × 2,209.52
  4. Step 4: Simplify right side
    3,405.84x = 10,378,910.87
  5. Step 5: Solve for x
    x = 10,378,910.87/3,405.84
  6. Step 6: Final answer
    x = 3,047.39

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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.