Home / 2,261.80-3,121.69-1,475.83

Finding the Fourth Proportional to 2,261.80, 3,121.69 and 1,475.83

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Solution

The fourth proportional to 2,261.80, 3,121.69 and 1,475.83 is: 2,036.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.80 : 3,121.69 = 1,475.83 : x
  2. Step 2: Convert to fraction form
    2,261.80/3,121.69 = 1,475.83/x
  3. Step 3: Cross multiply
    2,261.80x = 3,121.69 × 1,475.83
  4. Step 4: Simplify right side
    2,261.80x = 4,607,083.75
  5. Step 5: Solve for x
    x = 4,607,083.75/2,261.80
  6. Step 6: Final answer
    x = 2,036.91

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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.