Home / 5,281.71-7,288.69-3,185.84

Finding the Fourth Proportional to 5,281.71, 7,288.69 and 3,185.84

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Solution

The fourth proportional to 5,281.71, 7,288.69 and 3,185.84 is: 4,396.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.71 : 7,288.69 = 3,185.84 : x
  2. Step 2: Convert to fraction form
    5,281.71/7,288.69 = 3,185.84/x
  3. Step 3: Cross multiply
    5,281.71x = 7,288.69 × 3,185.84
  4. Step 4: Simplify right side
    5,281.71x = 23,220,600.15
  5. Step 5: Solve for x
    x = 23,220,600.15/5,281.71
  6. Step 6: Final answer
    x = 4,396.42

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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.