Home / 4,087.30-5,636.73-2,909.38

Finding the Fourth Proportional to 4,087.30, 5,636.73 and 2,909.38

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Solution

The fourth proportional to 4,087.30, 5,636.73 and 2,909.38 is: 4,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.30 : 5,636.73 = 2,909.38 : x
  2. Step 2: Convert to fraction form
    4,087.30/5,636.73 = 2,909.38/x
  3. Step 3: Cross multiply
    4,087.30x = 5,636.73 × 2,909.38
  4. Step 4: Simplify right side
    4,087.30x = 16,399,389.53
  5. Step 5: Solve for x
    x = 16,399,389.53/4,087.30
  6. Step 6: Final answer
    x = 4,012.28

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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.