Home / 6,515.57-8,991.41-3,531.39

Finding the Fourth Proportional to 6,515.57, 8,991.41 and 3,531.39

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Solution

The fourth proportional to 6,515.57, 8,991.41 and 3,531.39 is: 4,873.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.57 : 8,991.41 = 3,531.39 : x
  2. Step 2: Convert to fraction form
    6,515.57/8,991.41 = 3,531.39/x
  3. Step 3: Cross multiply
    6,515.57x = 8,991.41 × 3,531.39
  4. Step 4: Simplify right side
    6,515.57x = 31,752,157.70
  5. Step 5: Solve for x
    x = 31,752,157.70/6,515.57
  6. Step 6: Final answer
    x = 4,873.28

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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.