Home / 2,089.03-3,134.35-857.02

Finding the Fourth Proportional to 2,089.03, 3,134.35 and 857.02

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Solution

The fourth proportional to 2,089.03, 3,134.35 and 857.02 is: 1,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.03 : 3,134.35 = 857.02 : x
  2. Step 2: Convert to fraction form
    2,089.03/3,134.35 = 857.02/x
  3. Step 3: Cross multiply
    2,089.03x = 3,134.35 × 857.02
  4. Step 4: Simplify right side
    2,089.03x = 2,686,193.87
  5. Step 5: Solve for x
    x = 2,686,193.87/2,089.03
  6. Step 6: Final answer
    x = 1,285.86

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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.