Home / 5,315.60-7,336.20-2,958.80

Finding the Fourth Proportional to 5,315.60, 7,336.20 and 2,958.80

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Solution

The fourth proportional to 5,315.60, 7,336.20 and 2,958.80 is: 4,083.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.60 : 7,336.20 = 2,958.80 : x
  2. Step 2: Convert to fraction form
    5,315.60/7,336.20 = 2,958.80/x
  3. Step 3: Cross multiply
    5,315.60x = 7,336.20 × 2,958.80
  4. Step 4: Simplify right side
    5,315.60x = 21,706,348.56
  5. Step 5: Solve for x
    x = 21,706,348.56/5,315.60
  6. Step 6: Final answer
    x = 4,083.52

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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.