Home / 2,812.59-4,216.46-1,080

Finding the Fourth Proportional to 2,812.59, 4,216.46 and 1,080

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Solution

The fourth proportional to 2,812.59, 4,216.46 and 1,080 is: 1,619.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.59 : 4,216.46 = 1,080 : x
  2. Step 2: Convert to fraction form
    2,812.59/4,216.46 = 1,080/x
  3. Step 3: Cross multiply
    2,812.59x = 4,216.46 × 1,080
  4. Step 4: Simplify right side
    2,812.59x = 4,553,771.40
  5. Step 5: Solve for x
    x = 4,553,771.40/2,812.59
  6. Step 6: Final answer
    x = 1,619.07

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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.