Home / 5,909.50-8,860.56-2,209.78

Finding the Fourth Proportional to 5,909.50, 8,860.56 and 2,209.78

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Solution

The fourth proportional to 5,909.50, 8,860.56 and 2,209.78 is: 3,313.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,909.50 : 8,860.56 = 2,209.78 : x
  2. Step 2: Convert to fraction form
    5,909.50/8,860.56 = 2,209.78/x
  3. Step 3: Cross multiply
    5,909.50x = 8,860.56 × 2,209.78
  4. Step 4: Simplify right side
    5,909.50x = 19,579,888.28
  5. Step 5: Solve for x
    x = 19,579,888.28/5,909.50
  6. Step 6: Final answer
    x = 3,313.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.