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Finding the Fourth Proportional to 2,803.02, 3,868.07 and 1,543.96

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Solution

The fourth proportional to 2,803.02, 3,868.07 and 1,543.96 is: 2,130.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.02 : 3,868.07 = 1,543.96 : x
  2. Step 2: Convert to fraction form
    2,803.02/3,868.07 = 1,543.96/x
  3. Step 3: Cross multiply
    2,803.02x = 3,868.07 × 1,543.96
  4. Step 4: Simplify right side
    2,803.02x = 5,972,145.36
  5. Step 5: Solve for x
    x = 5,972,145.36/2,803.02
  6. Step 6: Final answer
    x = 2,130.61

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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.