Home / 6,181.28-8,531.16-3,528.80

Finding the Fourth Proportional to 6,181.28, 8,531.16 and 3,528.80

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Solution

The fourth proportional to 6,181.28, 8,531.16 and 3,528.80 is: 4,870.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,181.28 : 8,531.16 = 3,528.80 : x
  2. Step 2: Convert to fraction form
    6,181.28/8,531.16 = 3,528.80/x
  3. Step 3: Cross multiply
    6,181.28x = 8,531.16 × 3,528.80
  4. Step 4: Simplify right side
    6,181.28x = 30,104,757.41
  5. Step 5: Solve for x
    x = 30,104,757.41/6,181.28
  6. Step 6: Final answer
    x = 4,870.31

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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.