Home / 6,515.68-8,991.59-3,531.48

Finding the Fourth Proportional to 6,515.68, 8,991.59 and 3,531.48

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Solution

The fourth proportional to 6,515.68, 8,991.59 and 3,531.48 is: 4,873.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.68 : 8,991.59 = 3,531.48 : x
  2. Step 2: Convert to fraction form
    6,515.68/8,991.59 = 3,531.48/x
  3. Step 3: Cross multiply
    6,515.68x = 8,991.59 × 3,531.48
  4. Step 4: Simplify right side
    6,515.68x = 31,753,575.30
  5. Step 5: Solve for x
    x = 31,753,575.30/6,515.68
  6. Step 6: Final answer
    x = 4,873.41

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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.