Home / 5,208.60-7,195.68-3,420.30

Finding the Fourth Proportional to 5,208.60, 7,195.68 and 3,420.30

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Solution

The fourth proportional to 5,208.60, 7,195.68 and 3,420.30 is: 4,725.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.60 : 7,195.68 = 3,420.30 : x
  2. Step 2: Convert to fraction form
    5,208.60/7,195.68 = 3,420.30/x
  3. Step 3: Cross multiply
    5,208.60x = 7,195.68 × 3,420.30
  4. Step 4: Simplify right side
    5,208.60x = 24,611,384.30
  5. Step 5: Solve for x
    x = 24,611,384.30/5,208.60
  6. Step 6: Final answer
    x = 4,725.14

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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.