Home / 5,080.10-7,620.75-1,792.51

Finding the Fourth Proportional to 5,080.10, 7,620.75 and 1,792.51

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Solution

The fourth proportional to 5,080.10, 7,620.75 and 1,792.51 is: 2,688.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,080.10 : 7,620.75 = 1,792.51 : x
  2. Step 2: Convert to fraction form
    5,080.10/7,620.75 = 1,792.51/x
  3. Step 3: Cross multiply
    5,080.10x = 7,620.75 × 1,792.51
  4. Step 4: Simplify right side
    5,080.10x = 13,660,251.53
  5. Step 5: Solve for x
    x = 13,660,251.53/5,080.10
  6. Step 6: Final answer
    x = 2,688.98

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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.