Home / 2,312.75-3,469.16-1,080

Finding the Fourth Proportional to 2,312.75, 3,469.16 and 1,080

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Solution

The fourth proportional to 2,312.75, 3,469.16 and 1,080 is: 1,620.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.75 : 3,469.16 = 1,080 : x
  2. Step 2: Convert to fraction form
    2,312.75/3,469.16 = 1,080/x
  3. Step 3: Cross multiply
    2,312.75x = 3,469.16 × 1,080
  4. Step 4: Simplify right side
    2,312.75x = 3,746,695.50
  5. Step 5: Solve for x
    x = 3,746,695.50/2,312.75
  6. Step 6: Final answer
    x = 1,620.02

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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.