Home / 2,775.51-4,160.79-1,020.11

Finding the Fourth Proportional to 2,775.51, 4,160.79 and 1,020.11

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Solution

The fourth proportional to 2,775.51, 4,160.79 and 1,020.11 is: 1,529.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.51 : 4,160.79 = 1,020.11 : x
  2. Step 2: Convert to fraction form
    2,775.51/4,160.79 = 1,020.11/x
  3. Step 3: Cross multiply
    2,775.51x = 4,160.79 × 1,020.11
  4. Step 4: Simplify right side
    2,775.51x = 4,244,442.68
  5. Step 5: Solve for x
    x = 4,244,442.68/2,775.51
  6. Step 6: Final answer
    x = 1,529.25

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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.