Home / 5,151.82-7,725.90-1,864.06

Finding the Fourth Proportional to 5,151.82, 7,725.90 and 1,864.06

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Solution

The fourth proportional to 5,151.82, 7,725.90 and 1,864.06 is: 2,795.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.82 : 7,725.90 = 1,864.06 : x
  2. Step 2: Convert to fraction form
    5,151.82/7,725.90 = 1,864.06/x
  3. Step 3: Cross multiply
    5,151.82x = 7,725.90 × 1,864.06
  4. Step 4: Simplify right side
    5,151.82x = 14,401,541.15
  5. Step 5: Solve for x
    x = 14,401,541.15/5,151.82
  6. Step 6: Final answer
    x = 2,795.43

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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.