Home / 5,209.84-7,189.26-3,085.36

Finding the Fourth Proportional to 5,209.84, 7,189.26 and 3,085.36

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Solution

The fourth proportional to 5,209.84, 7,189.26 and 3,085.36 is: 4,257.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.84 : 7,189.26 = 3,085.36 : x
  2. Step 2: Convert to fraction form
    5,209.84/7,189.26 = 3,085.36/x
  3. Step 3: Cross multiply
    5,209.84x = 7,189.26 × 3,085.36
  4. Step 4: Simplify right side
    5,209.84x = 22,181,455.23
  5. Step 5: Solve for x
    x = 22,181,455.23/5,209.84
  6. Step 6: Final answer
    x = 4,257.61

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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.