Home / 6,515.56-8,991.42-3,531.40

Finding the Fourth Proportional to 6,515.56, 8,991.42 and 3,531.40

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Solution

The fourth proportional to 6,515.56, 8,991.42 and 3,531.40 is: 4,873.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.56 : 8,991.42 = 3,531.40 : x
  2. Step 2: Convert to fraction form
    6,515.56/8,991.42 = 3,531.40/x
  3. Step 3: Cross multiply
    6,515.56x = 8,991.42 × 3,531.40
  4. Step 4: Simplify right side
    6,515.56x = 31,752,284.73
  5. Step 5: Solve for x
    x = 31,752,284.73/6,515.56
  6. Step 6: Final answer
    x = 4,873.30

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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.