Home / 2,760.65-3,809.68-1,532.80

Finding the Fourth Proportional to 2,760.65, 3,809.68 and 1,532.80

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Solution

The fourth proportional to 2,760.65, 3,809.68 and 1,532.80 is: 2,115.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.65 : 3,809.68 = 1,532.80 : x
  2. Step 2: Convert to fraction form
    2,760.65/3,809.68 = 1,532.80/x
  3. Step 3: Cross multiply
    2,760.65x = 3,809.68 × 1,532.80
  4. Step 4: Simplify right side
    2,760.65x = 5,839,464.15
  5. Step 5: Solve for x
    x = 5,839,464.15/2,760.65
  6. Step 6: Final answer
    x = 2,115.25

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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.