Home / 5,387.51-8,085.83-2,102.96

Finding the Fourth Proportional to 5,387.51, 8,085.83 and 2,102.96

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Solution

The fourth proportional to 5,387.51, 8,085.83 and 2,102.96 is: 3,156.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.51 : 8,085.83 = 2,102.96 : x
  2. Step 2: Convert to fraction form
    5,387.51/8,085.83 = 2,102.96/x
  3. Step 3: Cross multiply
    5,387.51x = 8,085.83 × 2,102.96
  4. Step 4: Simplify right side
    5,387.51x = 17,004,186.76
  5. Step 5: Solve for x
    x = 17,004,186.76/5,387.51
  6. Step 6: Final answer
    x = 3,156.22

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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.