Home / 5,680.81-8,515.69-2,757.52

Finding the Fourth Proportional to 5,680.81, 8,515.69 and 2,757.52

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Solution

The fourth proportional to 5,680.81, 8,515.69 and 2,757.52 is: 4,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.81 : 8,515.69 = 2,757.52 : x
  2. Step 2: Convert to fraction form
    5,680.81/8,515.69 = 2,757.52/x
  3. Step 3: Cross multiply
    5,680.81x = 8,515.69 × 2,757.52
  4. Step 4: Simplify right side
    5,680.81x = 23,482,185.49
  5. Step 5: Solve for x
    x = 23,482,185.49/5,680.81
  6. Step 6: Final answer
    x = 4,133.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.