Home / 5,209.55-7,189.56-3,438.08

Finding the Fourth Proportional to 5,209.55, 7,189.56 and 3,438.08

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Solution

The fourth proportional to 5,209.55, 7,189.56 and 3,438.08 is: 4,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.55 : 7,189.56 = 3,438.08 : x
  2. Step 2: Convert to fraction form
    5,209.55/7,189.56 = 3,438.08/x
  3. Step 3: Cross multiply
    5,209.55x = 7,189.56 × 3,438.08
  4. Step 4: Simplify right side
    5,209.55x = 24,718,255.88
  5. Step 5: Solve for x
    x = 24,718,255.88/5,209.55
  6. Step 6: Final answer
    x = 4,744.80

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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.